72238640

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:318

約数の個数: 80

約数和(自身を含む): 173533536

約数和(自身を除く): 101294896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 113, 122, 131, 226, 244, 262, 305, 452, 488, 524, 565, 610, 655, 904, 976, 1048, 1130, 1220, 1310, 1808, 2096, 2260, 2440, 2620, 4520, 4880, 5240, 6893, 7991, 9040, 10480, 13786, 14803, 15982, 27572, 29606, 31964, 34465, 39955, 55144, 59212, 63928, 68930, 74015, 79910, 110288, 118424, 127856, 137860, 148030, 159820, 236848, 275720, 296060, 319640, 551440, 592120, 639280, 902983, 1184240, 1805966, 3611932, 4514915, 7223864, 9029830, 14447728, 18059660, 36119320, 72238640]

約数ペア:

[(1, 72238640), (2, 36119320), (4, 18059660), (5, 14447728), (8, 9029830), (10, 7223864), (16, 4514915), (20, 3611932), (40, 1805966), (61, 1184240), (80, 902983), (113, 639280), (122, 592120), (131, 551440), (226, 319640), (244, 296060), (262, 275720), (305, 236848), (452, 159820), (488, 148030), (524, 137860), (565, 127856), (610, 118424), (655, 110288), (904, 79910), (976, 74015), (1048, 68930), (1130, 63928), (1220, 59212), (1310, 55144), (1808, 39955), (2096, 34465), (2260, 31964), (2440, 29606), (2620, 27572), (4520, 15982), (4880, 14803), (5240, 13786), (6893, 10480), (7991, 9040)]