257983470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{859}}^1$

素因数の和:990

約数の個数: 96

約数和(自身を含む): 695485440

約数和(自身を除く): 437501970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 47, 71, 90, 94, 141, 142, 213, 235, 282, 355, 423, 426, 470, 639, 705, 710, 846, 859, 1065, 1278, 1410, 1718, 2115, 2130, 2577, 3195, 3337, 4230, 4295, 5154, 6390, 6674, 7731, 8590, 10011, 12885, 15462, 16685, 20022, 25770, 30033, 33370, 38655, 40373, 50055, 60066, 60989, 77310, 80746, 100110, 121119, 121978, 150165, 182967, 201865, 242238, 300330, 304945, 363357, 365934, 403730, 548901, 605595, 609890, 726714, 914835, 1097802, 1211190, 1816785, 1829670, 2744505, 2866483, 3633570, 5489010, 5732966, 8599449, 14332415, 17198898, 25798347, 28664830, 42997245, 51596694, 85994490, 128991735, 257983470]

約数ペア:

[(1, 257983470), (2, 128991735), (3, 85994490), (5, 51596694), (6, 42997245), (9, 28664830), (10, 25798347), (15, 17198898), (18, 14332415), (30, 8599449), (45, 5732966), (47, 5489010), (71, 3633570), (90, 2866483), (94, 2744505), (141, 1829670), (142, 1816785), (213, 1211190), (235, 1097802), (282, 914835), (355, 726714), (423, 609890), (426, 605595), (470, 548901), (639, 403730), (705, 365934), (710, 363357), (846, 304945), (859, 300330), (1065, 242238), (1278, 201865), (1410, 182967), (1718, 150165), (2115, 121978), (2130, 121119), (2577, 100110), (3195, 80746), (3337, 77310), (4230, 60989), (4295, 60066), (5154, 50055), (6390, 40373), (6674, 38655), (7731, 33370), (8590, 30033), (10011, 25770), (12885, 20022), (15462, 16685)]