8319220

素因数分解:

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

素因数の和:689

約数の個数: 72

約数和(自身を含む): 21919464

約数和(自身を除く): 13600244

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 653, 910, 980, 1274, 1306, 1820, 2548, 2612, 3185, 3265, 4571, 6370, 6530, 8489, 9142, 12740, 13060, 16978, 18284, 22855, 31997, 33956, 42445, 45710, 59423, 63994, 84890, 91420, 118846, 127988, 159985, 169780, 237692, 297115, 319970, 415961, 594230, 639940, 831922, 1188460, 1663844, 2079805, 4159610, 8319220]

約数ペア:

[(1, 8319220), (2, 4159610), (4, 2079805), (5, 1663844), (7, 1188460), (10, 831922), (13, 639940), (14, 594230), (20, 415961), (26, 319970), (28, 297115), (35, 237692), (49, 169780), (52, 159985), (65, 127988), (70, 118846), (91, 91420), (98, 84890), (130, 63994), (140, 59423), (182, 45710), (196, 42445), (245, 33956), (260, 31997), (364, 22855), (455, 18284), (490, 16978), (637, 13060), (653, 12740), (910, 9142), (980, 8489), (1274, 6530), (1306, 6370), (1820, 4571), (2548, 3265), (2612, 3185)]