247391820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{691}}^1$

素因数の和:742

約数の個数: 240

約数和(自身を含む): 886219488

約数和(自身を除く): 638827668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 27, 30, 34, 36, 39, 45, 51, 52, 54, 60, 65, 68, 78, 81, 85, 90, 102, 108, 117, 130, 135, 153, 156, 162, 170, 180, 195, 204, 221, 234, 255, 260, 270, 306, 324, 340, 351, 390, 405, 442, 459, 468, 510, 540, 585, 612, 663, 691, 702, 765, 780, 810, 884, 918, 1020, 1053, 1105, 1170, 1326, 1377, 1382, 1404, 1530, 1620, 1755, 1836, 1989, 2073, 2106, 2210, 2295, 2340, 2652, 2754, 2764, 3060, 3315, 3455, 3510, 3978, 4146, 4212, 4420, 4590, 5265, 5508, 5967, 6219, 6630, 6885, 6910, 7020, 7956, 8292, 8983, 9180, 9945, 10365, 10530, 11747, 11934, 12438, 13260, 13770, 13820, 17901, 17966, 18657, 19890, 20730, 21060, 23494, 23868, 24876, 26949, 27540, 29835, 31095, 35241, 35802, 35932, 37314, 39780, 41460, 44915, 46988, 53898, 55971, 58735, 59670, 62190, 70482, 71604, 74628, 80847, 89505, 89830, 93285, 105723, 107796, 111942, 117470, 119340, 124380, 134745, 140964, 152711, 161694, 176205, 179010, 179660, 186570, 211446, 223884, 234940, 242541, 269490, 279855, 305422, 317169, 323388, 352410, 358020, 373140, 404235, 422892, 458133, 485082, 528615, 538980, 559710, 610844, 634338, 704820, 727623, 763555, 808470, 916266, 951507, 970164, 1057230, 1119420, 1212705, 1268676, 1374399, 1455246, 1527110, 1585845, 1616940, 1832532, 1903014, 2114460, 2290665, 2425410, 2748798, 2910492, 3054220, 3171690, 3638115, 3806028, 4123197, 4581330, 4757535, 4850820, 5497596, 6343380, 6871995, 7276230, 8246394, 9162660, 9515070, 12369591, 13743990, 14552460, 16492788, 19030140, 20615985, 24739182, 27487980, 41231970, 49478364, 61847955, 82463940, 123695910, 247391820]

約数ペア:

[(1, 247391820), (2, 123695910), (3, 82463940), (4, 61847955), (5, 49478364), (6, 41231970), (9, 27487980), (10, 24739182), (12, 20615985), (13, 19030140), (15, 16492788), (17, 14552460), (18, 13743990), (20, 12369591), (26, 9515070), (27, 9162660), (30, 8246394), (34, 7276230), (36, 6871995), (39, 6343380), (45, 5497596), (51, 4850820), (52, 4757535), (54, 4581330), (60, 4123197), (65, 3806028), (68, 3638115), (78, 3171690), (81, 3054220), (85, 2910492), (90, 2748798), (102, 2425410), (108, 2290665), (117, 2114460), (130, 1903014), (135, 1832532), (153, 1616940), (156, 1585845), (162, 1527110), (170, 1455246), (180, 1374399), (195, 1268676), (204, 1212705), (221, 1119420), (234, 1057230), (255, 970164), (260, 951507), (270, 916266), (306, 808470), (324, 763555), (340, 727623), (351, 704820), (390, 634338), (405, 610844), (442, 559710), (459, 538980), (468, 528615), (510, 485082), (540, 458133), (585, 422892), (612, 404235), (663, 373140), (691, 358020), (702, 352410), (765, 323388), (780, 317169), (810, 305422), (884, 279855), (918, 269490), (1020, 242541), (1053, 234940), (1105, 223884), (1170, 211446), (1326, 186570), (1377, 179660), (1382, 179010), (1404, 176205), (1530, 161694), (1620, 152711), (1755, 140964), (1836, 134745), (1989, 124380), (2073, 119340), (2106, 117470), (2210, 111942), (2295, 107796), (2340, 105723), (2652, 93285), (2754, 89830), (2764, 89505), (3060, 80847), (3315, 74628), (3455, 71604), (3510, 70482), (3978, 62190), (4146, 59670), (4212, 58735), (4420, 55971), (4590, 53898), (5265, 46988), (5508, 44915), (5967, 41460), (6219, 39780), (6630, 37314), (6885, 35932), (6910, 35802), (7020, 35241), (7956, 31095), (8292, 29835), (8983, 27540), (9180, 26949), (9945, 24876), (10365, 23868), (10530, 23494), (11747, 21060), (11934, 20730), (12438, 19890), (13260, 18657), (13770, 17966), (13820, 17901)]