31863780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:140

約数の個数: 240

約数和(自身を含む): 115259760

約数和(自身を除く): 83395980

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, 89, 90, 102, 108, 117, 130, 135, 153, 156, 162, 170, 178, 180, 195, 204, 221, 234, 255, 260, 267, 270, 306, 324, 340, 351, 356, 390, 405, 442, 445, 459, 468, 510, 534, 540, 585, 612, 663, 702, 765, 780, 801, 810, 884, 890, 918, 1020, 1053, 1068, 1105, 1157, 1170, 1326, 1335, 1377, 1404, 1513, 1530, 1602, 1620, 1755, 1780, 1836, 1989, 2106, 2210, 2295, 2314, 2340, 2403, 2652, 2670, 2754, 3026, 3060, 3204, 3315, 3471, 3510, 3978, 4005, 4212, 4420, 4539, 4590, 4628, 4806, 5265, 5340, 5508, 5785, 5967, 6052, 6630, 6885, 6942, 7020, 7209, 7565, 7956, 8010, 9078, 9180, 9612, 9945, 10413, 10530, 11570, 11934, 12015, 13260, 13617, 13770, 13884, 14418, 15130, 16020, 17355, 17901, 18156, 19669, 19890, 20826, 21060, 22695, 23140, 23868, 24030, 27234, 27540, 28836, 29835, 30260, 31239, 34710, 35802, 36045, 39338, 39780, 40851, 41652, 45390, 48060, 52065, 54468, 59007, 59670, 62478, 68085, 69420, 71604, 72090, 78676, 81702, 89505, 90780, 93717, 98345, 104130, 118014, 119340, 122553, 124956, 136170, 144180, 156195, 163404, 177021, 179010, 187434, 196690, 204255, 208260, 236028, 245106, 272340, 295035, 312390, 354042, 358020, 374868, 393380, 408510, 468585, 490212, 531063, 590070, 612765, 624780, 708084, 817020, 885105, 937170, 1062126, 1180140, 1225530, 1593189, 1770210, 1874340, 2124252, 2451060, 2655315, 3186378, 3540420, 5310630, 6372756, 7965945, 10621260, 15931890, 31863780]

約数ペア:

[(1, 31863780), (2, 15931890), (3, 10621260), (4, 7965945), (5, 6372756), (6, 5310630), (9, 3540420), (10, 3186378), (12, 2655315), (13, 2451060), (15, 2124252), (17, 1874340), (18, 1770210), (20, 1593189), (26, 1225530), (27, 1180140), (30, 1062126), (34, 937170), (36, 885105), (39, 817020), (45, 708084), (51, 624780), (52, 612765), (54, 590070), (60, 531063), (65, 490212), (68, 468585), (78, 408510), (81, 393380), (85, 374868), (89, 358020), (90, 354042), (102, 312390), (108, 295035), (117, 272340), (130, 245106), (135, 236028), (153, 208260), (156, 204255), (162, 196690), (170, 187434), (178, 179010), (180, 177021), (195, 163404), (204, 156195), (221, 144180), (234, 136170), (255, 124956), (260, 122553), (267, 119340), (270, 118014), (306, 104130), (324, 98345), (340, 93717), (351, 90780), (356, 89505), (390, 81702), (405, 78676), (442, 72090), (445, 71604), (459, 69420), (468, 68085), (510, 62478), (534, 59670), (540, 59007), (585, 54468), (612, 52065), (663, 48060), (702, 45390), (765, 41652), (780, 40851), (801, 39780), (810, 39338), (884, 36045), (890, 35802), (918, 34710), (1020, 31239), (1053, 30260), (1068, 29835), (1105, 28836), (1157, 27540), (1170, 27234), (1326, 24030), (1335, 23868), (1377, 23140), (1404, 22695), (1513, 21060), (1530, 20826), (1602, 19890), (1620, 19669), (1755, 18156), (1780, 17901), (1836, 17355), (1989, 16020), (2106, 15130), (2210, 14418), (2295, 13884), (2314, 13770), (2340, 13617), (2403, 13260), (2652, 12015), (2670, 11934), (2754, 11570), (3026, 10530), (3060, 10413), (3204, 9945), (3315, 9612), (3471, 9180), (3510, 9078), (3978, 8010), (4005, 7956), (4212, 7565), (4420, 7209), (4539, 7020), (4590, 6942), (4628, 6885), (4806, 6630), (5265, 6052), (5340, 5967), (5508, 5785)]