64642240

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1$

素因数の和:450

約数の個数: 112

約数和(自身を含む): 170261280

約数和(自身を除く): 105619040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 64, 65, 80, 82, 104, 130, 160, 164, 205, 208, 260, 320, 328, 379, 410, 416, 520, 533, 656, 758, 820, 832, 1040, 1066, 1312, 1516, 1640, 1895, 2080, 2132, 2624, 2665, 3032, 3280, 3790, 4160, 4264, 4927, 5330, 6064, 6560, 7580, 8528, 9854, 10660, 12128, 13120, 15160, 15539, 17056, 19708, 21320, 24256, 24635, 30320, 31078, 34112, 39416, 42640, 49270, 60640, 62156, 77695, 78832, 85280, 98540, 121280, 124312, 155390, 157664, 170560, 197080, 202007, 248624, 310780, 315328, 394160, 404014, 497248, 621560, 788320, 808028, 994496, 1010035, 1243120, 1576640, 1616056, 2020070, 2486240, 3232112, 4040140, 4972480, 6464224, 8080280, 12928448, 16160560, 32321120, 64642240]

約数ペア:

[(1, 64642240), (2, 32321120), (4, 16160560), (5, 12928448), (8, 8080280), (10, 6464224), (13, 4972480), (16, 4040140), (20, 3232112), (26, 2486240), (32, 2020070), (40, 1616056), (41, 1576640), (52, 1243120), (64, 1010035), (65, 994496), (80, 808028), (82, 788320), (104, 621560), (130, 497248), (160, 404014), (164, 394160), (205, 315328), (208, 310780), (260, 248624), (320, 202007), (328, 197080), (379, 170560), (410, 157664), (416, 155390), (520, 124312), (533, 121280), (656, 98540), (758, 85280), (820, 78832), (832, 77695), (1040, 62156), (1066, 60640), (1312, 49270), (1516, 42640), (1640, 39416), (1895, 34112), (2080, 31078), (2132, 30320), (2624, 24635), (2665, 24256), (3032, 21320), (3280, 19708), (3790, 17056), (4160, 15539), (4264, 15160), (4927, 13120), (5330, 12128), (6064, 10660), (6560, 9854), (7580, 8528)]