78293840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2503}}^1$

素因数の和:2556

約数の個数: 80

約数和(自身を含む): 201201408

約数和(自身を除く): 122907568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 460, 680, 782, 920, 1360, 1564, 1840, 1955, 2503, 3128, 3910, 5006, 6256, 7820, 10012, 12515, 15640, 20024, 25030, 31280, 40048, 42551, 50060, 57569, 85102, 100120, 115138, 170204, 200240, 212755, 230276, 287845, 340408, 425510, 460552, 575690, 680816, 851020, 921104, 978673, 1151380, 1702040, 1957346, 2302760, 3404080, 3914692, 4605520, 4893365, 7829384, 9786730, 15658768, 19573460, 39146920, 78293840]

約数ペア:

[(1, 78293840), (2, 39146920), (4, 19573460), (5, 15658768), (8, 9786730), (10, 7829384), (16, 4893365), (17, 4605520), (20, 3914692), (23, 3404080), (34, 2302760), (40, 1957346), (46, 1702040), (68, 1151380), (80, 978673), (85, 921104), (92, 851020), (115, 680816), (136, 575690), (170, 460552), (184, 425510), (230, 340408), (272, 287845), (340, 230276), (368, 212755), (391, 200240), (460, 170204), (680, 115138), (782, 100120), (920, 85102), (1360, 57569), (1564, 50060), (1840, 42551), (1955, 40048), (2503, 31280), (3128, 25030), (3910, 20024), (5006, 15640), (6256, 12515), (7820, 10012)]