338998640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{136693}}^1$

素因数の和:136737

約数の個数: 40

約数和(自身を含む): 813602688

約数和(自身を除く): 474604048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 136693, 273386, 546772, 683465, 1093544, 1366930, 2187088, 2733860, 4237483, 5467720, 8474966, 10935440, 16949932, 21187415, 33899864, 42374830, 67799728, 84749660, 169499320, 338998640]

約数ペア:

[(1, 338998640), (2, 169499320), (4, 84749660), (5, 67799728), (8, 42374830), (10, 33899864), (16, 21187415), (20, 16949932), (31, 10935440), (40, 8474966), (62, 5467720), (80, 4237483), (124, 2733860), (155, 2187088), (248, 1366930), (310, 1093544), (496, 683465), (620, 546772), (1240, 273386), (2480, 136693)]