13905560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 32810400

約数和(自身を除く): 18904840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 61, 82, 122, 139, 164, 205, 244, 278, 305, 328, 410, 488, 556, 610, 695, 820, 1112, 1220, 1390, 1640, 2440, 2501, 2780, 5002, 5560, 5699, 8479, 10004, 11398, 12505, 16958, 20008, 22796, 25010, 28495, 33916, 42395, 45592, 50020, 56990, 67832, 84790, 100040, 113980, 169580, 227960, 339160, 347639, 695278, 1390556, 1738195, 2781112, 3476390, 6952780, 13905560]

約数ペア:

[(1, 13905560), (2, 6952780), (4, 3476390), (5, 2781112), (8, 1738195), (10, 1390556), (20, 695278), (40, 347639), (41, 339160), (61, 227960), (82, 169580), (122, 113980), (139, 100040), (164, 84790), (205, 67832), (244, 56990), (278, 50020), (305, 45592), (328, 42395), (410, 33916), (488, 28495), (556, 25010), (610, 22796), (695, 20008), (820, 16958), (1112, 12505), (1220, 11398), (1390, 10004), (1640, 8479), (2440, 5699), (2501, 5560), (2780, 5002)]