20055920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14747}}^1$

素因数の和:14777

約数の個数: 40

約数和(自身を含む): 49376304

約数和(自身を除く): 29320384

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14747, 29494, 58988, 73735, 117976, 147470, 235952, 250699, 294940, 501398, 589880, 1002796, 1179760, 1253495, 2005592, 2506990, 4011184, 5013980, 10027960, 20055920]

約数ペア:

[(1, 20055920), (2, 10027960), (4, 5013980), (5, 4011184), (8, 2506990), (10, 2005592), (16, 1253495), (17, 1179760), (20, 1002796), (34, 589880), (40, 501398), (68, 294940), (80, 250699), (85, 235952), (136, 147470), (170, 117976), (272, 73735), (340, 58988), (680, 29494), (1360, 14747)]