221865488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:360

約数の個数: 80

約数和(自身を含む): 478094400

約数和(自身を除く): 256228912

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 59, 101, 104, 118, 179, 202, 208, 236, 358, 404, 472, 716, 767, 808, 944, 1313, 1432, 1534, 1616, 2327, 2626, 2864, 3068, 4654, 5252, 5959, 6136, 9308, 10504, 10561, 11918, 12272, 18079, 18616, 21008, 21122, 23836, 36158, 37232, 42244, 47672, 72316, 77467, 84488, 95344, 137293, 144632, 154934, 168976, 235027, 274586, 289264, 309868, 470054, 549172, 619736, 940108, 1066661, 1098344, 1239472, 1880216, 2133322, 2196688, 3760432, 4266644, 8533288, 13866593, 17066576, 27733186, 55466372, 110932744, 221865488]

約数ペア:

[(1, 221865488), (2, 110932744), (4, 55466372), (8, 27733186), (13, 17066576), (16, 13866593), (26, 8533288), (52, 4266644), (59, 3760432), (101, 2196688), (104, 2133322), (118, 1880216), (179, 1239472), (202, 1098344), (208, 1066661), (236, 940108), (358, 619736), (404, 549172), (472, 470054), (716, 309868), (767, 289264), (808, 274586), (944, 235027), (1313, 168976), (1432, 154934), (1534, 144632), (1616, 137293), (2327, 95344), (2626, 84488), (2864, 77467), (3068, 72316), (4654, 47672), (5252, 42244), (5959, 37232), (6136, 36158), (9308, 23836), (10504, 21122), (10561, 21008), (11918, 18616), (12272, 18079)]