1991795880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1\times {\mathrm{941}}^1$

素因数の和:1555

約数の個数: 128

約数和(自身を含む): 6185548800

約数和(自身を除く): 4193752920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 569, 620, 744, 930, 941, 1138, 1240, 1707, 1860, 1882, 2276, 2823, 2845, 3414, 3720, 3764, 4552, 4705, 5646, 5690, 6828, 7528, 8535, 9410, 11292, 11380, 13656, 14115, 17070, 17639, 18820, 22584, 22760, 28230, 29171, 34140, 35278, 37640, 52917, 56460, 58342, 68280, 70556, 87513, 88195, 105834, 112920, 116684, 141112, 145855, 175026, 176390, 211668, 233368, 264585, 291710, 350052, 352780, 423336, 437565, 529170, 535429, 583420, 700104, 705560, 875130, 1058340, 1070858, 1166840, 1606287, 1750260, 2116680, 2141716, 2677145, 3212574, 3500520, 4283432, 5354290, 6425148, 8031435, 10708580, 12850296, 16062870, 16598299, 21417160, 32125740, 33196598, 49794897, 64251480, 66393196, 82991495, 99589794, 132786392, 165982990, 199179588, 248974485, 331965980, 398359176, 497948970, 663931960, 995897940, 1991795880]

約数ペア:

[(1, 1991795880), (2, 995897940), (3, 663931960), (4, 497948970), (5, 398359176), (6, 331965980), (8, 248974485), (10, 199179588), (12, 165982990), (15, 132786392), (20, 99589794), (24, 82991495), (30, 66393196), (31, 64251480), (40, 49794897), (60, 33196598), (62, 32125740), (93, 21417160), (120, 16598299), (124, 16062870), (155, 12850296), (186, 10708580), (248, 8031435), (310, 6425148), (372, 5354290), (465, 4283432), (569, 3500520), (620, 3212574), (744, 2677145), (930, 2141716), (941, 2116680), (1138, 1750260), (1240, 1606287), (1707, 1166840), (1860, 1070858), (1882, 1058340), (2276, 875130), (2823, 705560), (2845, 700104), (3414, 583420), (3720, 535429), (3764, 529170), (4552, 437565), (4705, 423336), (5646, 352780), (5690, 350052), (6828, 291710), (7528, 264585), (8535, 233368), (9410, 211668), (11292, 176390), (11380, 175026), (13656, 145855), (14115, 141112), (17070, 116684), (17639, 112920), (18820, 105834), (22584, 88195), (22760, 87513), (28230, 70556), (29171, 68280), (34140, 58342), (35278, 56460), (37640, 52917)]