20372772040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1531}}^1\times {\mathrm{17509}}^1$

素因数の和:19070

約数の個数: 64

約数和(自身を含む): 48285576000

約数和(自身を除く): 27912803960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1531, 3062, 6124, 7655, 12248, 15310, 17509, 29089, 30620, 35018, 58178, 61240, 70036, 87545, 116356, 140072, 145445, 175090, 232712, 290890, 332671, 350180, 581780, 665342, 700360, 1163560, 1330684, 1663355, 2661368, 3326710, 6653420, 13306840, 26806279, 53612558, 107225116, 134031395, 214450232, 268062790, 509319301, 536125580, 1018638602, 1072251160, 2037277204, 2546596505, 4074554408, 5093193010, 10186386020, 20372772040]

約数ペア:

[(1, 20372772040), (2, 10186386020), (4, 5093193010), (5, 4074554408), (8, 2546596505), (10, 2037277204), (19, 1072251160), (20, 1018638602), (38, 536125580), (40, 509319301), (76, 268062790), (95, 214450232), (152, 134031395), (190, 107225116), (380, 53612558), (760, 26806279), (1531, 13306840), (3062, 6653420), (6124, 3326710), (7655, 2661368), (12248, 1663355), (15310, 1330684), (17509, 1163560), (29089, 700360), (30620, 665342), (35018, 581780), (58178, 350180), (61240, 332671), (70036, 290890), (87545, 232712), (116356, 175090), (140072, 145445)]