253785220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:150

約数の個数: 144

約数和(自身を含む): 635378688

約数和(自身を除く): 381593468

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 31, 37, 46, 52, 62, 65, 74, 92, 115, 124, 130, 148, 155, 185, 230, 260, 299, 310, 370, 403, 460, 481, 598, 620, 713, 740, 806, 851, 962, 1147, 1196, 1369, 1426, 1495, 1612, 1702, 1924, 2015, 2294, 2405, 2738, 2852, 2990, 3404, 3565, 4030, 4255, 4588, 4810, 5476, 5735, 5980, 6845, 7130, 8060, 8510, 9269, 9620, 11063, 11470, 13690, 14260, 14911, 17020, 17797, 18538, 22126, 22940, 26381, 27380, 29822, 31487, 35594, 37076, 42439, 44252, 46345, 52762, 55315, 59644, 62974, 71188, 74555, 84878, 88985, 92690, 105524, 110630, 125948, 131905, 149110, 157435, 169756, 177970, 185380, 212195, 221260, 263810, 298220, 314870, 342953, 355940, 409331, 424390, 527620, 551707, 629740, 685906, 818662, 848780, 976097, 1103414, 1371812, 1637324, 1714765, 1952194, 2046655, 2206828, 2758535, 3429530, 3904388, 4093310, 4880485, 5517070, 6859060, 8186620, 9760970, 11034140, 12689261, 19521940, 25378522, 50757044, 63446305, 126892610, 253785220]

約数ペア:

[(1, 253785220), (2, 126892610), (4, 63446305), (5, 50757044), (10, 25378522), (13, 19521940), (20, 12689261), (23, 11034140), (26, 9760970), (31, 8186620), (37, 6859060), (46, 5517070), (52, 4880485), (62, 4093310), (65, 3904388), (74, 3429530), (92, 2758535), (115, 2206828), (124, 2046655), (130, 1952194), (148, 1714765), (155, 1637324), (185, 1371812), (230, 1103414), (260, 976097), (299, 848780), (310, 818662), (370, 685906), (403, 629740), (460, 551707), (481, 527620), (598, 424390), (620, 409331), (713, 355940), (740, 342953), (806, 314870), (851, 298220), (962, 263810), (1147, 221260), (1196, 212195), (1369, 185380), (1426, 177970), (1495, 169756), (1612, 157435), (1702, 149110), (1924, 131905), (2015, 125948), (2294, 110630), (2405, 105524), (2738, 92690), (2852, 88985), (2990, 84878), (3404, 74555), (3565, 71188), (4030, 62974), (4255, 59644), (4588, 55315), (4810, 52762), (5476, 46345), (5735, 44252), (5980, 42439), (6845, 37076), (7130, 35594), (8060, 31487), (8510, 29822), (9269, 27380), (9620, 26381), (11063, 22940), (11470, 22126), (13690, 18538), (14260, 17797), (14911, 17020)]