251657780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:377

約数の個数: 96

約数和(自身を含む): 595703808

約数和(自身を除く): 344046028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 113, 191, 212, 220, 226, 265, 382, 452, 530, 565, 583, 764, 955, 1060, 1130, 1166, 1243, 1910, 2101, 2260, 2332, 2486, 2915, 3820, 4202, 4972, 5830, 5989, 6215, 8404, 10123, 10505, 11660, 11978, 12430, 20246, 21010, 21583, 23956, 24860, 29945, 40492, 42020, 43166, 50615, 59890, 65879, 86332, 101230, 107915, 111353, 119780, 131758, 202460, 215830, 222706, 237413, 263516, 329395, 431660, 445412, 474826, 556765, 658790, 949652, 1113530, 1143899, 1187065, 1317580, 2227060, 2287798, 2374130, 4575596, 4748260, 5719495, 11438990, 12582889, 22877980, 25165778, 50331556, 62914445, 125828890, 251657780]

約数ペア:

[(1, 251657780), (2, 125828890), (4, 62914445), (5, 50331556), (10, 25165778), (11, 22877980), (20, 12582889), (22, 11438990), (44, 5719495), (53, 4748260), (55, 4575596), (106, 2374130), (110, 2287798), (113, 2227060), (191, 1317580), (212, 1187065), (220, 1143899), (226, 1113530), (265, 949652), (382, 658790), (452, 556765), (530, 474826), (565, 445412), (583, 431660), (764, 329395), (955, 263516), (1060, 237413), (1130, 222706), (1166, 215830), (1243, 202460), (1910, 131758), (2101, 119780), (2260, 111353), (2332, 107915), (2486, 101230), (2915, 86332), (3820, 65879), (4202, 59890), (4972, 50615), (5830, 43166), (5989, 42020), (6215, 40492), (8404, 29945), (10123, 24860), (10505, 23956), (11660, 21583), (11978, 21010), (12430, 20246)]