2813840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2069}}^1$

素因数の和:2099

約数の個数: 40

約数和(自身を含む): 6930360

約数和(自身を除く): 4116520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 2069, 4138, 8276, 10345, 16552, 20690, 33104, 35173, 41380, 70346, 82760, 140692, 165520, 175865, 281384, 351730, 562768, 703460, 1406920, 2813840]

約数ペア:

[(1, 2813840), (2, 1406920), (4, 703460), (5, 562768), (8, 351730), (10, 281384), (16, 175865), (17, 165520), (20, 140692), (34, 82760), (40, 70346), (68, 41380), (80, 35173), (85, 33104), (136, 20690), (170, 16552), (272, 10345), (340, 8276), (680, 4138), (1360, 2069)]