1788591220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{27851}}^1$

素因数の和:27905

約数の個数: 72

約数和(自身を含む): 4281409440

約数和(自身を除く): 2492818220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 380, 494, 676, 845, 988, 1235, 1690, 2470, 3211, 3380, 4940, 6422, 12844, 16055, 27851, 32110, 55702, 64220, 111404, 139255, 278510, 362063, 529169, 557020, 724126, 1058338, 1448252, 1810315, 2116676, 2645845, 3620630, 4706819, 5291690, 6879197, 7241260, 9413638, 10583380, 13758394, 18827276, 23534095, 27516788, 34395985, 47068190, 68791970, 89429561, 94136380, 137583940, 178859122, 357718244, 447147805, 894295610, 1788591220]

約数ペア:

[(1, 1788591220), (2, 894295610), (4, 447147805), (5, 357718244), (10, 178859122), (13, 137583940), (19, 94136380), (20, 89429561), (26, 68791970), (38, 47068190), (52, 34395985), (65, 27516788), (76, 23534095), (95, 18827276), (130, 13758394), (169, 10583380), (190, 9413638), (247, 7241260), (260, 6879197), (338, 5291690), (380, 4706819), (494, 3620630), (676, 2645845), (845, 2116676), (988, 1810315), (1235, 1448252), (1690, 1058338), (2470, 724126), (3211, 557020), (3380, 529169), (4940, 362063), (6422, 278510), (12844, 139255), (16055, 111404), (27851, 64220), (32110, 55702)]