72801990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{311}}^1$

素因数の和:364

約数の個数: 120

約数和(自身を含む): 208617552

約数和(自身を除く): 135815562

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 289, 306, 311, 405, 459, 510, 578, 622, 765, 810, 867, 918, 933, 1377, 1445, 1530, 1555, 1734, 1866, 2295, 2601, 2754, 2799, 2890, 3110, 4335, 4590, 4665, 5202, 5287, 5598, 6885, 7803, 8397, 8670, 9330, 10574, 13005, 13770, 13995, 15606, 15861, 16794, 23409, 25191, 26010, 26435, 27990, 31722, 39015, 41985, 46818, 47583, 50382, 52870, 78030, 79305, 83970, 89879, 95166, 117045, 125955, 142749, 158610, 179758, 234090, 237915, 251910, 269637, 285498, 428247, 449395, 475830, 539274, 713745, 808911, 856494, 898790, 1348185, 1427490, 1617822, 2141235, 2426733, 2696370, 4044555, 4282470, 4853466, 7280199, 8089110, 12133665, 14560398, 24267330, 36400995, 72801990]

約数ペア:

[(1, 72801990), (2, 36400995), (3, 24267330), (5, 14560398), (6, 12133665), (9, 8089110), (10, 7280199), (15, 4853466), (17, 4282470), (18, 4044555), (27, 2696370), (30, 2426733), (34, 2141235), (45, 1617822), (51, 1427490), (54, 1348185), (81, 898790), (85, 856494), (90, 808911), (102, 713745), (135, 539274), (153, 475830), (162, 449395), (170, 428247), (255, 285498), (270, 269637), (289, 251910), (306, 237915), (311, 234090), (405, 179758), (459, 158610), (510, 142749), (578, 125955), (622, 117045), (765, 95166), (810, 89879), (867, 83970), (918, 79305), (933, 78030), (1377, 52870), (1445, 50382), (1530, 47583), (1555, 46818), (1734, 41985), (1866, 39015), (2295, 31722), (2601, 27990), (2754, 26435), (2799, 26010), (2890, 25191), (3110, 23409), (4335, 16794), (4590, 15861), (4665, 15606), (5202, 13995), (5287, 13770), (5598, 13005), (6885, 10574), (7803, 9330), (8397, 8670)]