72765680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 160

約数和(自身を含む): 196320768

約数和(自身を除く): 123555088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 37, 40, 52, 61, 62, 65, 74, 80, 104, 122, 124, 130, 148, 155, 185, 208, 244, 248, 260, 296, 305, 310, 370, 403, 481, 488, 496, 520, 592, 610, 620, 740, 793, 806, 962, 976, 1040, 1147, 1220, 1240, 1480, 1586, 1612, 1891, 1924, 2015, 2257, 2294, 2405, 2440, 2480, 2960, 3172, 3224, 3782, 3848, 3965, 4030, 4514, 4588, 4810, 4880, 5735, 6344, 6448, 7564, 7696, 7930, 8060, 9028, 9176, 9455, 9620, 11285, 11470, 12688, 14911, 15128, 15860, 16120, 18056, 18352, 18910, 19240, 22570, 22940, 24583, 29341, 29822, 30256, 31720, 32240, 36112, 37820, 38480, 45140, 45880, 49166, 58682, 59644, 63440, 69967, 74555, 75640, 90280, 91760, 98332, 117364, 119288, 122915, 139934, 146705, 149110, 151280, 180560, 196664, 234728, 238576, 245830, 279868, 293410, 298220, 349835, 393328, 469456, 491660, 559736, 586820, 596440, 699670, 909571, 983320, 1119472, 1173640, 1192880, 1399340, 1819142, 1966640, 2347280, 2798680, 3638284, 4547855, 5597360, 7276568, 9095710, 14553136, 18191420, 36382840, 72765680]

約数ペア:

[(1, 72765680), (2, 36382840), (4, 18191420), (5, 14553136), (8, 9095710), (10, 7276568), (13, 5597360), (16, 4547855), (20, 3638284), (26, 2798680), (31, 2347280), (37, 1966640), (40, 1819142), (52, 1399340), (61, 1192880), (62, 1173640), (65, 1119472), (74, 983320), (80, 909571), (104, 699670), (122, 596440), (124, 586820), (130, 559736), (148, 491660), (155, 469456), (185, 393328), (208, 349835), (244, 298220), (248, 293410), (260, 279868), (296, 245830), (305, 238576), (310, 234728), (370, 196664), (403, 180560), (481, 151280), (488, 149110), (496, 146705), (520, 139934), (592, 122915), (610, 119288), (620, 117364), (740, 98332), (793, 91760), (806, 90280), (962, 75640), (976, 74555), (1040, 69967), (1147, 63440), (1220, 59644), (1240, 58682), (1480, 49166), (1586, 45880), (1612, 45140), (1891, 38480), (1924, 37820), (2015, 36112), (2257, 32240), (2294, 31720), (2405, 30256), (2440, 29822), (2480, 29341), (2960, 24583), (3172, 22940), (3224, 22570), (3782, 19240), (3848, 18910), (3965, 18352), (4030, 18056), (4514, 16120), (4588, 15860), (4810, 15128), (4880, 14911), (5735, 12688), (6344, 11470), (6448, 11285), (7564, 9620), (7696, 9455), (7930, 9176), (8060, 9028)]