631939984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1289}}^1\times {\mathrm{2357}}^1$

素因数の和:3667

約数の個数: 40

約数和(自身を含む): 1320149880

約数和(自身を除く): 688209896

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1289, 2357, 2578, 4714, 5156, 9428, 10312, 16757, 18856, 20624, 30641, 33514, 37712, 61282, 67028, 122564, 134056, 245128, 268112, 490256, 3038173, 6076346, 12152692, 24305384, 39496249, 48610768, 78992498, 157984996, 315969992, 631939984]

約数ペア:

[(1, 631939984), (2, 315969992), (4, 157984996), (8, 78992498), (13, 48610768), (16, 39496249), (26, 24305384), (52, 12152692), (104, 6076346), (208, 3038173), (1289, 490256), (2357, 268112), (2578, 245128), (4714, 134056), (5156, 122564), (9428, 67028), (10312, 61282), (16757, 37712), (18856, 33514), (20624, 30641)]