15851990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 38561184

約数和(自身を除く): 22709194

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 49, 55, 70, 77, 85, 98, 110, 119, 154, 170, 173, 187, 238, 245, 346, 374, 385, 490, 539, 595, 770, 833, 865, 935, 1078, 1190, 1211, 1309, 1666, 1730, 1870, 1903, 2422, 2618, 2695, 2941, 3806, 4165, 5390, 5882, 6055, 6545, 8330, 8477, 9163, 9515, 12110, 13090, 13321, 14705, 16954, 18326, 19030, 20587, 26642, 29410, 32351, 41174, 42385, 45815, 64702, 66605, 84770, 91630, 93247, 102935, 133210, 144109, 161755, 186494, 205870, 226457, 288218, 323510, 452914, 466235, 720545, 932470, 1132285, 1441090, 1585199, 2264570, 3170398, 7925995, 15851990]

約数ペア:

[(1, 15851990), (2, 7925995), (5, 3170398), (7, 2264570), (10, 1585199), (11, 1441090), (14, 1132285), (17, 932470), (22, 720545), (34, 466235), (35, 452914), (49, 323510), (55, 288218), (70, 226457), (77, 205870), (85, 186494), (98, 161755), (110, 144109), (119, 133210), (154, 102935), (170, 93247), (173, 91630), (187, 84770), (238, 66605), (245, 64702), (346, 45815), (374, 42385), (385, 41174), (490, 32351), (539, 29410), (595, 26642), (770, 20587), (833, 19030), (865, 18326), (935, 16954), (1078, 14705), (1190, 13321), (1211, 13090), (1309, 12110), (1666, 9515), (1730, 9163), (1870, 8477), (1903, 8330), (2422, 6545), (2618, 6055), (2695, 5882), (2941, 5390), (3806, 4165)]