20157750

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{17}}^2\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 144

約数和(自身を含む): 59769216

約数和(自身を除く): 39611466

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 25, 30, 31, 34, 45, 50, 51, 62, 75, 85, 90, 93, 102, 125, 150, 153, 155, 170, 186, 225, 250, 255, 279, 289, 306, 310, 375, 425, 450, 465, 510, 527, 558, 578, 750, 765, 775, 850, 867, 930, 1054, 1125, 1275, 1395, 1445, 1530, 1550, 1581, 1734, 2125, 2250, 2325, 2550, 2601, 2635, 2790, 2890, 3162, 3825, 3875, 4250, 4335, 4650, 4743, 5202, 5270, 6375, 6975, 7225, 7650, 7750, 7905, 8670, 8959, 9486, 11625, 12750, 13005, 13175, 13950, 14450, 15810, 17918, 19125, 21675, 23250, 23715, 26010, 26350, 26877, 34875, 36125, 38250, 39525, 43350, 44795, 47430, 53754, 65025, 65875, 69750, 72250, 79050, 80631, 89590, 108375, 118575, 130050, 131750, 134385, 161262, 197625, 216750, 223975, 237150, 268770, 325125, 395250, 403155, 447950, 592875, 650250, 671925, 806310, 1119875, 1185750, 1343850, 2015775, 2239750, 3359625, 4031550, 6719250, 10078875, 20157750]

約数ペア:

[(1, 20157750), (2, 10078875), (3, 6719250), (5, 4031550), (6, 3359625), (9, 2239750), (10, 2015775), (15, 1343850), (17, 1185750), (18, 1119875), (25, 806310), (30, 671925), (31, 650250), (34, 592875), (45, 447950), (50, 403155), (51, 395250), (62, 325125), (75, 268770), (85, 237150), (90, 223975), (93, 216750), (102, 197625), (125, 161262), (150, 134385), (153, 131750), (155, 130050), (170, 118575), (186, 108375), (225, 89590), (250, 80631), (255, 79050), (279, 72250), (289, 69750), (306, 65875), (310, 65025), (375, 53754), (425, 47430), (450, 44795), (465, 43350), (510, 39525), (527, 38250), (558, 36125), (578, 34875), (750, 26877), (765, 26350), (775, 26010), (850, 23715), (867, 23250), (930, 21675), (1054, 19125), (1125, 17918), (1275, 15810), (1395, 14450), (1445, 13950), (1530, 13175), (1550, 13005), (1581, 12750), (1734, 11625), (2125, 9486), (2250, 8959), (2325, 8670), (2550, 7905), (2601, 7750), (2635, 7650), (2790, 7225), (2890, 6975), (3162, 6375), (3825, 5270), (3875, 5202), (4250, 4743), (4335, 4650)]