20115420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:120

約数の個数: 192

約数和(自身を含む): 67568256

約数和(自身を除く): 47452836

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 37, 39, 41, 51, 52, 60, 65, 68, 74, 78, 82, 85, 102, 111, 123, 130, 148, 156, 164, 170, 185, 195, 204, 205, 221, 222, 246, 255, 260, 340, 370, 390, 410, 442, 444, 481, 492, 510, 533, 555, 615, 629, 663, 697, 740, 780, 820, 884, 962, 1020, 1066, 1105, 1110, 1230, 1258, 1326, 1394, 1443, 1517, 1599, 1887, 1924, 2091, 2132, 2210, 2220, 2405, 2460, 2516, 2652, 2665, 2788, 2886, 3034, 3145, 3198, 3315, 3485, 3774, 4182, 4420, 4551, 4810, 5330, 5772, 6068, 6290, 6396, 6630, 6970, 7215, 7548, 7585, 7995, 8177, 8364, 9061, 9102, 9435, 9620, 10455, 10660, 12580, 13260, 13940, 14430, 15170, 15990, 16354, 18122, 18204, 18870, 19721, 20910, 22755, 24531, 25789, 27183, 28860, 30340, 31980, 32708, 36244, 37740, 39442, 40885, 41820, 45305, 45510, 49062, 51578, 54366, 59163, 77367, 78884, 81770, 90610, 91020, 98124, 98605, 103156, 108732, 118326, 122655, 128945, 135915, 154734, 163540, 181220, 197210, 236652, 245310, 257890, 271830, 295815, 309468, 335257, 386835, 394420, 490620, 515780, 543660, 591630, 670514, 773670, 1005771, 1183260, 1341028, 1547340, 1676285, 2011542, 3352570, 4023084, 5028855, 6705140, 10057710, 20115420]

約数ペア:

[(1, 20115420), (2, 10057710), (3, 6705140), (4, 5028855), (5, 4023084), (6, 3352570), (10, 2011542), (12, 1676285), (13, 1547340), (15, 1341028), (17, 1183260), (20, 1005771), (26, 773670), (30, 670514), (34, 591630), (37, 543660), (39, 515780), (41, 490620), (51, 394420), (52, 386835), (60, 335257), (65, 309468), (68, 295815), (74, 271830), (78, 257890), (82, 245310), (85, 236652), (102, 197210), (111, 181220), (123, 163540), (130, 154734), (148, 135915), (156, 128945), (164, 122655), (170, 118326), (185, 108732), (195, 103156), (204, 98605), (205, 98124), (221, 91020), (222, 90610), (246, 81770), (255, 78884), (260, 77367), (340, 59163), (370, 54366), (390, 51578), (410, 49062), (442, 45510), (444, 45305), (481, 41820), (492, 40885), (510, 39442), (533, 37740), (555, 36244), (615, 32708), (629, 31980), (663, 30340), (697, 28860), (740, 27183), (780, 25789), (820, 24531), (884, 22755), (962, 20910), (1020, 19721), (1066, 18870), (1105, 18204), (1110, 18122), (1230, 16354), (1258, 15990), (1326, 15170), (1394, 14430), (1443, 13940), (1517, 13260), (1599, 12580), (1887, 10660), (1924, 10455), (2091, 9620), (2132, 9435), (2210, 9102), (2220, 9061), (2405, 8364), (2460, 8177), (2516, 7995), (2652, 7585), (2665, 7548), (2788, 7215), (2886, 6970), (3034, 6630), (3145, 6396), (3198, 6290), (3315, 6068), (3485, 5772), (3774, 5330), (4182, 4810), (4420, 4551)]