65121940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{149}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 151968600

約数和(自身を除く): 86846660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 149, 164, 205, 260, 298, 410, 533, 596, 745, 820, 1066, 1490, 1681, 1937, 2132, 2665, 2980, 3362, 3874, 5330, 6109, 6724, 7748, 8405, 9685, 10660, 12218, 16810, 19370, 21853, 24436, 30545, 33620, 38740, 43706, 61090, 79417, 87412, 109265, 122180, 158834, 218530, 250469, 317668, 397085, 437060, 500938, 794170, 1001876, 1252345, 1588340, 2504690, 3256097, 5009380, 6512194, 13024388, 16280485, 32560970, 65121940]

約数ペア:

[(1, 65121940), (2, 32560970), (4, 16280485), (5, 13024388), (10, 6512194), (13, 5009380), (20, 3256097), (26, 2504690), (41, 1588340), (52, 1252345), (65, 1001876), (82, 794170), (130, 500938), (149, 437060), (164, 397085), (205, 317668), (260, 250469), (298, 218530), (410, 158834), (533, 122180), (596, 109265), (745, 87412), (820, 79417), (1066, 61090), (1490, 43706), (1681, 38740), (1937, 33620), (2132, 30545), (2665, 24436), (2980, 21853), (3362, 19370), (3874, 16810), (5330, 12218), (6109, 10660), (6724, 9685), (7748, 8405)]