16638440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{653}}^1$

素因数の和:691

約数の個数: 96

約数和(自身を含む): 46970280

約数和(自身を除く): 30331840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 653, 728, 910, 980, 1274, 1306, 1820, 1960, 2548, 2612, 3185, 3265, 3640, 4571, 5096, 5224, 6370, 6530, 8489, 9142, 12740, 13060, 16978, 18284, 22855, 25480, 26120, 31997, 33956, 36568, 42445, 45710, 59423, 63994, 67912, 84890, 91420, 118846, 127988, 159985, 169780, 182840, 237692, 255976, 297115, 319970, 339560, 415961, 475384, 594230, 639940, 831922, 1188460, 1279880, 1663844, 2079805, 2376920, 3327688, 4159610, 8319220, 16638440]

約数ペア:

[(1, 16638440), (2, 8319220), (4, 4159610), (5, 3327688), (7, 2376920), (8, 2079805), (10, 1663844), (13, 1279880), (14, 1188460), (20, 831922), (26, 639940), (28, 594230), (35, 475384), (40, 415961), (49, 339560), (52, 319970), (56, 297115), (65, 255976), (70, 237692), (91, 182840), (98, 169780), (104, 159985), (130, 127988), (140, 118846), (182, 91420), (196, 84890), (245, 67912), (260, 63994), (280, 59423), (364, 45710), (392, 42445), (455, 36568), (490, 33956), (520, 31997), (637, 26120), (653, 25480), (728, 22855), (910, 18284), (980, 16978), (1274, 13060), (1306, 12740), (1820, 9142), (1960, 8489), (2548, 6530), (2612, 6370), (3185, 5224), (3265, 5096), (3640, 4571)]