920646220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{208291}}^1$

素因数の和:208330

約数の個数: 48

約数和(自身を含む): 2204562528

約数和(自身を除く): 1283916308

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 208291, 416582, 833164, 1041455, 2082910, 2707783, 3540947, 4165820, 5415566, 7081894, 10831132, 13538915, 14163788, 17704735, 27077830, 35409470, 46032311, 54155660, 70818940, 92064622, 184129244, 230161555, 460323110, 920646220]

約数ペア:

[(1, 920646220), (2, 460323110), (4, 230161555), (5, 184129244), (10, 92064622), (13, 70818940), (17, 54155660), (20, 46032311), (26, 35409470), (34, 27077830), (52, 17704735), (65, 14163788), (68, 13538915), (85, 10831132), (130, 7081894), (170, 5415566), (221, 4165820), (260, 3540947), (340, 2707783), (442, 2082910), (884, 1041455), (1105, 833164), (2210, 416582), (4420, 208291)]