18808110440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2166833}}^1$

素因数の和:2166882

約数の個数: 64

約数和(自身を含む): 49923855360

約数和(自身を除く): 31115744920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 2166833, 4333666, 8667332, 10834165, 15167831, 17334664, 21668330, 30335662, 43336660, 60671324, 67171823, 75839155, 86673320, 121342648, 134343646, 151678310, 268687292, 303356620, 335859115, 470202761, 537374584, 606713240, 671718230, 940405522, 1343436460, 1880811044, 2351013805, 2686872920, 3761622088, 4702027610, 9404055220, 18808110440]

約数ペア:

[(1, 18808110440), (2, 9404055220), (4, 4702027610), (5, 3761622088), (7, 2686872920), (8, 2351013805), (10, 1880811044), (14, 1343436460), (20, 940405522), (28, 671718230), (31, 606713240), (35, 537374584), (40, 470202761), (56, 335859115), (62, 303356620), (70, 268687292), (124, 151678310), (140, 134343646), (155, 121342648), (217, 86673320), (248, 75839155), (280, 67171823), (310, 60671324), (434, 43336660), (620, 30335662), (868, 21668330), (1085, 17334664), (1240, 15167831), (1736, 10834165), (2170, 8667332), (4340, 4333666), (8680, 2166833)]