64952200

素因数分解:

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

素因数の和:235

約数の個数: 72

約数和(自身を含む): 156454830

約数和(自身を除く): 91502630

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 89, 100, 164, 178, 200, 205, 328, 356, 410, 445, 712, 820, 890, 1025, 1640, 1780, 2050, 2225, 3560, 3649, 4100, 4450, 7298, 7921, 8200, 8900, 14596, 15842, 17800, 18245, 29192, 31684, 36490, 39605, 63368, 72980, 79210, 91225, 145960, 158420, 182450, 198025, 316840, 324761, 364900, 396050, 649522, 729800, 792100, 1299044, 1584200, 1623805, 2598088, 3247610, 6495220, 8119025, 12990440, 16238050, 32476100, 64952200]

約数ペア:

[(1, 64952200), (2, 32476100), (4, 16238050), (5, 12990440), (8, 8119025), (10, 6495220), (20, 3247610), (25, 2598088), (40, 1623805), (41, 1584200), (50, 1299044), (82, 792100), (89, 729800), (100, 649522), (164, 396050), (178, 364900), (200, 324761), (205, 316840), (328, 198025), (356, 182450), (410, 158420), (445, 145960), (712, 91225), (820, 79210), (890, 72980), (1025, 63368), (1640, 39605), (1780, 36490), (2050, 31684), (2225, 29192), (3560, 18245), (3649, 17800), (4100, 15842), (4450, 14596), (7298, 8900), (7921, 8200)]