81258760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:299

約数の個数: 96

約数和(自身を含む): 204160320

約数和(自身を除く): 122901560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 103, 110, 121, 163, 206, 220, 242, 326, 412, 440, 484, 515, 605, 652, 815, 824, 968, 1030, 1133, 1210, 1304, 1630, 1793, 2060, 2266, 2420, 3260, 3586, 4120, 4532, 4840, 5665, 6520, 7172, 8965, 9064, 11330, 12463, 14344, 16789, 17930, 19723, 22660, 24926, 33578, 35860, 39446, 45320, 49852, 62315, 67156, 71720, 78892, 83945, 98615, 99704, 124630, 134312, 157784, 167890, 184679, 197230, 249260, 335780, 369358, 394460, 498520, 671560, 738716, 788920, 923395, 1477432, 1846790, 2031469, 3693580, 4062938, 7387160, 8125876, 10157345, 16251752, 20314690, 40629380, 81258760]

約数ペア:

[(1, 81258760), (2, 40629380), (4, 20314690), (5, 16251752), (8, 10157345), (10, 8125876), (11, 7387160), (20, 4062938), (22, 3693580), (40, 2031469), (44, 1846790), (55, 1477432), (88, 923395), (103, 788920), (110, 738716), (121, 671560), (163, 498520), (206, 394460), (220, 369358), (242, 335780), (326, 249260), (412, 197230), (440, 184679), (484, 167890), (515, 157784), (605, 134312), (652, 124630), (815, 99704), (824, 98615), (968, 83945), (1030, 78892), (1133, 71720), (1210, 67156), (1304, 62315), (1630, 49852), (1793, 45320), (2060, 39446), (2266, 35860), (2420, 33578), (3260, 24926), (3586, 22660), (4120, 19723), (4532, 17930), (4840, 16789), (5665, 14344), (6520, 12463), (7172, 11330), (8965, 9064)]