401407825

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 661457664

約数和(自身を除く): 260049839

約数列:

[1, 5, 7, 13, 17, 25, 35, 65, 85, 91, 97, 107, 119, 175, 221, 325, 425, 455, 485, 535, 595, 679, 749, 1105, 1261, 1391, 1547, 1649, 1819, 2275, 2425, 2675, 2975, 3395, 3745, 5525, 6305, 6955, 7735, 8245, 8827, 9095, 9737, 10379, 11543, 12733, 16975, 18725, 21437, 23647, 31525, 34775, 38675, 41225, 44135, 45475, 48685, 51895, 57715, 63665, 72653, 107185, 118235, 134927, 150059, 165529, 176443, 220675, 243425, 259475, 288575, 318325, 363265, 535925, 591175, 674635, 750295, 827645, 882215, 944489, 1235101, 1816325, 2293759, 3373175, 3751475, 4138225, 4411075, 4722445, 6175505, 11468795, 16056313, 23612225, 30877525, 57343975, 80281565, 401407825]

約数ペア:

[(1, 401407825), (5, 80281565), (7, 57343975), (13, 30877525), (17, 23612225), (25, 16056313), (35, 11468795), (65, 6175505), (85, 4722445), (91, 4411075), (97, 4138225), (107, 3751475), (119, 3373175), (175, 2293759), (221, 1816325), (325, 1235101), (425, 944489), (455, 882215), (485, 827645), (535, 750295), (595, 674635), (679, 591175), (749, 535925), (1105, 363265), (1261, 318325), (1391, 288575), (1547, 259475), (1649, 243425), (1819, 220675), (2275, 176443), (2425, 165529), (2675, 150059), (2975, 134927), (3395, 118235), (3745, 107185), (5525, 72653), (6305, 63665), (6955, 57715), (7735, 51895), (8245, 48685), (8827, 45475), (9095, 44135), (9737, 41225), (10379, 38675), (11543, 34775), (12733, 31525), (16975, 23647), (18725, 21437)]