287485960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{463}}^1$

素因数の和:555

約数の個数: 96

約数和(自身を含む): 700064640

約数和(自身を除く): 412578680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 361, 380, 430, 463, 722, 760, 817, 860, 926, 1444, 1634, 1720, 1805, 1852, 2315, 2888, 3268, 3610, 3704, 4085, 4630, 6536, 7220, 8170, 8797, 9260, 14440, 15523, 16340, 17594, 18520, 19909, 31046, 32680, 35188, 39818, 43985, 62092, 70376, 77615, 79636, 87970, 99545, 124184, 155230, 159272, 167143, 175940, 199090, 310460, 334286, 351880, 378271, 398180, 620920, 668572, 756542, 796360, 835715, 1337144, 1513084, 1671430, 1891355, 3026168, 3342860, 3782710, 6685720, 7187149, 7565420, 14374298, 15130840, 28748596, 35935745, 57497192, 71871490, 143742980, 287485960]

約数ペア:

[(1, 287485960), (2, 143742980), (4, 71871490), (5, 57497192), (8, 35935745), (10, 28748596), (19, 15130840), (20, 14374298), (38, 7565420), (40, 7187149), (43, 6685720), (76, 3782710), (86, 3342860), (95, 3026168), (152, 1891355), (172, 1671430), (190, 1513084), (215, 1337144), (344, 835715), (361, 796360), (380, 756542), (430, 668572), (463, 620920), (722, 398180), (760, 378271), (817, 351880), (860, 334286), (926, 310460), (1444, 199090), (1634, 175940), (1720, 167143), (1805, 159272), (1852, 155230), (2315, 124184), (2888, 99545), (3268, 87970), (3610, 79636), (3704, 77615), (4085, 70376), (4630, 62092), (6536, 43985), (7220, 39818), (8170, 35188), (8797, 32680), (9260, 31046), (14440, 19909), (15523, 18520), (16340, 17594)]