287748020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{26017}}^1$

素因数の和:26112

約数の個数: 48

約数和(自身を含む): 699363840

約数和(自身を除く): 411615820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 5530, 11060, 26017, 52034, 104068, 130085, 182119, 260170, 364238, 520340, 728476, 910595, 1821190, 2055343, 3642380, 4110686, 8221372, 10276715, 14387401, 20553430, 28774802, 41106860, 57549604, 71937005, 143874010, 287748020]

約数ペア:

[(1, 287748020), (2, 143874010), (4, 71937005), (5, 57549604), (7, 41106860), (10, 28774802), (14, 20553430), (20, 14387401), (28, 10276715), (35, 8221372), (70, 4110686), (79, 3642380), (140, 2055343), (158, 1821190), (316, 910595), (395, 728476), (553, 520340), (790, 364238), (1106, 260170), (1580, 182119), (2212, 130085), (2765, 104068), (5530, 52034), (11060, 26017)]