20286704048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{809}}^1\times {\mathrm{3889}}^1$

素因数の和:4750

約数の個数: 80

約数和(自身を含む): 43759699200

約数和(自身を除く): 23472995152

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 809, 1612, 1618, 3224, 3236, 3889, 6448, 6472, 7778, 10517, 12944, 15556, 21034, 25079, 31112, 42068, 50158, 50557, 62224, 84136, 100316, 101114, 120559, 168272, 200632, 202228, 241118, 326027, 401264, 404456, 482236, 652054, 808912, 964472, 1304108, 1567267, 1928944, 2608216, 3134534, 3146201, 5216432, 6269068, 6292402, 12538136, 12584804, 25076272, 25169608, 40900613, 50339216, 81801226, 97532231, 163602452, 195064462, 327204904, 390128924, 654409808, 780257848, 1267919003, 1560515696, 2535838006, 5071676012, 10143352024, 20286704048]

約数ペア:

[(1, 20286704048), (2, 10143352024), (4, 5071676012), (8, 2535838006), (13, 1560515696), (16, 1267919003), (26, 780257848), (31, 654409808), (52, 390128924), (62, 327204904), (104, 195064462), (124, 163602452), (208, 97532231), (248, 81801226), (403, 50339216), (496, 40900613), (806, 25169608), (809, 25076272), (1612, 12584804), (1618, 12538136), (3224, 6292402), (3236, 6269068), (3889, 5216432), (6448, 3146201), (6472, 3134534), (7778, 2608216), (10517, 1928944), (12944, 1567267), (15556, 1304108), (21034, 964472), (25079, 808912), (31112, 652054), (42068, 482236), (50158, 404456), (50557, 401264), (62224, 326027), (84136, 241118), (100316, 202228), (101114, 200632), (120559, 168272)]