1605560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 4082400

約数和(自身を除く): 2476840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 89, 110, 164, 178, 205, 220, 328, 356, 410, 440, 445, 451, 712, 820, 890, 902, 979, 1640, 1780, 1804, 1958, 2255, 3560, 3608, 3649, 3916, 4510, 4895, 7298, 7832, 9020, 9790, 14596, 18040, 18245, 19580, 29192, 36490, 39160, 40139, 72980, 80278, 145960, 160556, 200695, 321112, 401390, 802780, 1605560]

約数ペア:

[(1, 1605560), (2, 802780), (4, 401390), (5, 321112), (8, 200695), (10, 160556), (11, 145960), (20, 80278), (22, 72980), (40, 40139), (41, 39160), (44, 36490), (55, 29192), (82, 19580), (88, 18245), (89, 18040), (110, 14596), (164, 9790), (178, 9020), (205, 7832), (220, 7298), (328, 4895), (356, 4510), (410, 3916), (440, 3649), (445, 3608), (451, 3560), (712, 2255), (820, 1958), (890, 1804), (902, 1780), (979, 1640)]