221417560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1031}}^1$

素因数の和:1121

約数の個数: 128

約数和(自身を含む): 624153600

約数和(自身を除く): 402736040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 59, 65, 70, 91, 104, 118, 130, 140, 182, 236, 260, 280, 295, 364, 413, 455, 472, 520, 590, 728, 767, 826, 910, 1031, 1180, 1534, 1652, 1820, 2062, 2065, 2360, 3068, 3304, 3640, 3835, 4124, 4130, 5155, 5369, 6136, 7217, 7670, 8248, 8260, 10310, 10738, 13403, 14434, 15340, 16520, 20620, 21476, 26806, 26845, 28868, 30680, 36085, 41240, 42952, 53612, 53690, 57736, 60829, 67015, 72170, 93821, 107224, 107380, 121658, 134030, 144340, 187642, 214760, 243316, 268060, 288680, 304145, 375284, 425803, 469105, 486632, 536120, 608290, 750568, 790777, 851606, 938210, 1216580, 1581554, 1703212, 1876420, 2129015, 2433160, 3163108, 3406424, 3752840, 3953885, 4258030, 5535439, 6326216, 7907770, 8516060, 11070878, 15815540, 17032120, 22141756, 27677195, 31631080, 44283512, 55354390, 110708780, 221417560]

約数ペア:

[(1, 221417560), (2, 110708780), (4, 55354390), (5, 44283512), (7, 31631080), (8, 27677195), (10, 22141756), (13, 17032120), (14, 15815540), (20, 11070878), (26, 8516060), (28, 7907770), (35, 6326216), (40, 5535439), (52, 4258030), (56, 3953885), (59, 3752840), (65, 3406424), (70, 3163108), (91, 2433160), (104, 2129015), (118, 1876420), (130, 1703212), (140, 1581554), (182, 1216580), (236, 938210), (260, 851606), (280, 790777), (295, 750568), (364, 608290), (413, 536120), (455, 486632), (472, 469105), (520, 425803), (590, 375284), (728, 304145), (767, 288680), (826, 268060), (910, 243316), (1031, 214760), (1180, 187642), (1534, 144340), (1652, 134030), (1820, 121658), (2062, 107380), (2065, 107224), (2360, 93821), (3068, 72170), (3304, 67015), (3640, 60829), (3835, 57736), (4124, 53690), (4130, 53612), (5155, 42952), (5369, 41240), (6136, 36085), (7217, 30680), (7670, 28868), (8248, 26845), (8260, 26806), (10310, 21476), (10738, 20620), (13403, 16520), (14434, 15340)]