73961680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{197}}^1$

素因数の和:261

約数の個数: 120

約数和(自身を含む): 196440552

約数和(自身を除く): 122478872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 197, 208, 247, 260, 304, 361, 380, 394, 494, 520, 722, 760, 788, 985, 988, 1040, 1235, 1444, 1520, 1576, 1805, 1970, 1976, 2470, 2561, 2888, 3152, 3610, 3743, 3940, 3952, 4693, 4940, 5122, 5776, 7220, 7486, 7880, 9386, 9880, 10244, 12805, 14440, 14972, 15760, 18715, 18772, 19760, 20488, 23465, 25610, 28880, 29944, 37430, 37544, 40976, 46930, 48659, 51220, 59888, 71117, 74860, 75088, 93860, 97318, 102440, 142234, 149720, 187720, 194636, 204880, 243295, 284468, 299440, 355585, 375440, 389272, 486590, 568936, 711170, 778544, 924521, 973180, 1137872, 1422340, 1849042, 1946360, 2844680, 3698084, 3892720, 4622605, 5689360, 7396168, 9245210, 14792336, 18490420, 36980840, 73961680]

約数ペア:

[(1, 73961680), (2, 36980840), (4, 18490420), (5, 14792336), (8, 9245210), (10, 7396168), (13, 5689360), (16, 4622605), (19, 3892720), (20, 3698084), (26, 2844680), (38, 1946360), (40, 1849042), (52, 1422340), (65, 1137872), (76, 973180), (80, 924521), (95, 778544), (104, 711170), (130, 568936), (152, 486590), (190, 389272), (197, 375440), (208, 355585), (247, 299440), (260, 284468), (304, 243295), (361, 204880), (380, 194636), (394, 187720), (494, 149720), (520, 142234), (722, 102440), (760, 97318), (788, 93860), (985, 75088), (988, 74860), (1040, 71117), (1235, 59888), (1444, 51220), (1520, 48659), (1576, 46930), (1805, 40976), (1970, 37544), (1976, 37430), (2470, 29944), (2561, 28880), (2888, 25610), (3152, 23465), (3610, 20488), (3743, 19760), (3940, 18772), (3952, 18715), (4693, 15760), (4940, 14972), (5122, 14440), (5776, 12805), (7220, 10244), (7486, 9880), (7880, 9386)]