654940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 1622880

約数和(自身を除く): 967940

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 229, 260, 286, 458, 572, 715, 916, 1145, 1430, 2290, 2519, 2860, 2977, 4580, 5038, 5954, 10076, 11908, 12595, 14885, 25190, 29770, 32747, 50380, 59540, 65494, 130988, 163735, 327470, 654940]

約数ペア:

[(1, 654940), (2, 327470), (4, 163735), (5, 130988), (10, 65494), (11, 59540), (13, 50380), (20, 32747), (22, 29770), (26, 25190), (44, 14885), (52, 12595), (55, 11908), (65, 10076), (110, 5954), (130, 5038), (143, 4580), (220, 2977), (229, 2860), (260, 2519), (286, 2290), (458, 1430), (572, 1145), (715, 916)]