129784820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:609

約数の個数: 96

約数和(自身を含む): 318729600

約数和(自身を除く): 188944780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 61, 76, 95, 110, 122, 190, 209, 220, 244, 305, 380, 418, 509, 610, 671, 836, 1018, 1045, 1159, 1220, 1342, 2036, 2090, 2318, 2545, 2684, 3355, 4180, 4636, 5090, 5599, 5795, 6710, 9671, 10180, 11198, 11590, 12749, 13420, 19342, 22396, 23180, 25498, 27995, 31049, 38684, 48355, 50996, 55990, 62098, 63745, 96710, 106381, 111980, 124196, 127490, 155245, 193420, 212762, 254980, 310490, 341539, 425524, 531905, 589931, 620980, 683078, 1063810, 1179862, 1366156, 1707695, 2127620, 2359724, 2949655, 3415390, 5899310, 6489241, 6830780, 11798620, 12978482, 25956964, 32446205, 64892410, 129784820]

約数ペア:

[(1, 129784820), (2, 64892410), (4, 32446205), (5, 25956964), (10, 12978482), (11, 11798620), (19, 6830780), (20, 6489241), (22, 5899310), (38, 3415390), (44, 2949655), (55, 2359724), (61, 2127620), (76, 1707695), (95, 1366156), (110, 1179862), (122, 1063810), (190, 683078), (209, 620980), (220, 589931), (244, 531905), (305, 425524), (380, 341539), (418, 310490), (509, 254980), (610, 212762), (671, 193420), (836, 155245), (1018, 127490), (1045, 124196), (1159, 111980), (1220, 106381), (1342, 96710), (2036, 63745), (2090, 62098), (2318, 55990), (2545, 50996), (2684, 48355), (3355, 38684), (4180, 31049), (4636, 27995), (5090, 25498), (5599, 23180), (5795, 22396), (6710, 19342), (9671, 13420), (10180, 12749), (11198, 11590)]