64764920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:229

約数の個数: 128

約数和(自身を含む): 171417600

約数和(自身を除く): 106652680

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 61, 76, 88, 95, 110, 122, 127, 152, 190, 209, 220, 244, 254, 305, 380, 418, 440, 488, 508, 610, 635, 671, 760, 836, 1016, 1045, 1159, 1220, 1270, 1342, 1397, 1672, 2090, 2318, 2413, 2440, 2540, 2684, 2794, 3355, 4180, 4636, 4826, 5080, 5368, 5588, 5795, 6710, 6985, 7747, 8360, 9272, 9652, 11176, 11590, 12065, 12749, 13420, 13970, 15494, 19304, 23180, 24130, 25498, 26543, 26840, 27940, 30988, 38735, 46360, 48260, 50996, 53086, 55880, 61976, 63745, 77470, 85217, 96520, 101992, 106172, 127490, 132715, 147193, 154940, 170434, 212344, 254980, 265430, 294386, 309880, 340868, 426085, 509960, 530860, 588772, 681736, 735965, 852170, 1061720, 1177544, 1471930, 1619123, 1704340, 2943860, 3238246, 3408680, 5887720, 6476492, 8095615, 12952984, 16191230, 32382460, 64764920]

約数ペア:

[(1, 64764920), (2, 32382460), (4, 16191230), (5, 12952984), (8, 8095615), (10, 6476492), (11, 5887720), (19, 3408680), (20, 3238246), (22, 2943860), (38, 1704340), (40, 1619123), (44, 1471930), (55, 1177544), (61, 1061720), (76, 852170), (88, 735965), (95, 681736), (110, 588772), (122, 530860), (127, 509960), (152, 426085), (190, 340868), (209, 309880), (220, 294386), (244, 265430), (254, 254980), (305, 212344), (380, 170434), (418, 154940), (440, 147193), (488, 132715), (508, 127490), (610, 106172), (635, 101992), (671, 96520), (760, 85217), (836, 77470), (1016, 63745), (1045, 61976), (1159, 55880), (1220, 53086), (1270, 50996), (1342, 48260), (1397, 46360), (1672, 38735), (2090, 30988), (2318, 27940), (2413, 26840), (2440, 26543), (2540, 25498), (2684, 24130), (2794, 23180), (3355, 19304), (4180, 15494), (4636, 13970), (4826, 13420), (5080, 12749), (5368, 12065), (5588, 11590), (5795, 11176), (6710, 9652), (6985, 9272), (7747, 8360)]