646501120

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 1615315968

約数和(自身を除く): 968814848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 97, 127, 128, 160, 164, 194, 205, 254, 256, 320, 328, 388, 410, 485, 508, 635, 640, 656, 776, 820, 970, 1016, 1270, 1280, 1312, 1552, 1640, 1940, 2032, 2540, 2624, 3104, 3280, 3880, 3977, 4064, 5080, 5207, 5248, 6208, 6560, 7760, 7954, 8128, 10160, 10414, 10496, 12319, 12416, 13120, 15520, 15908, 16256, 19885, 20320, 20828, 24638, 24832, 26035, 26240, 31040, 31816, 32512, 39770, 40640, 41656, 49276, 52070, 52480, 61595, 62080, 63632, 79540, 81280, 83312, 98552, 104140, 123190, 124160, 127264, 159080, 162560, 166624, 197104, 208280, 246380, 254528, 318160, 333248, 394208, 416560, 492760, 505079, 509056, 636320, 666496, 788416, 833120, 985520, 1010158, 1018112, 1272640, 1332992, 1576832, 1666240, 1971040, 2020316, 2525395, 2545280, 3153664, 3332480, 3942080, 4040632, 5050790, 5090560, 6664960, 7884160, 8081264, 10101580, 15768320, 16162528, 20203160, 32325056, 40406320, 64650112, 80812640, 129300224, 161625280, 323250560, 646501120]

約数ペア:

[(1, 646501120), (2, 323250560), (4, 161625280), (5, 129300224), (8, 80812640), (10, 64650112), (16, 40406320), (20, 32325056), (32, 20203160), (40, 16162528), (41, 15768320), (64, 10101580), (80, 8081264), (82, 7884160), (97, 6664960), (127, 5090560), (128, 5050790), (160, 4040632), (164, 3942080), (194, 3332480), (205, 3153664), (254, 2545280), (256, 2525395), (320, 2020316), (328, 1971040), (388, 1666240), (410, 1576832), (485, 1332992), (508, 1272640), (635, 1018112), (640, 1010158), (656, 985520), (776, 833120), (820, 788416), (970, 666496), (1016, 636320), (1270, 509056), (1280, 505079), (1312, 492760), (1552, 416560), (1640, 394208), (1940, 333248), (2032, 318160), (2540, 254528), (2624, 246380), (3104, 208280), (3280, 197104), (3880, 166624), (3977, 162560), (4064, 159080), (5080, 127264), (5207, 124160), (5248, 123190), (6208, 104140), (6560, 98552), (7760, 83312), (7954, 81280), (8128, 79540), (10160, 63632), (10414, 62080), (10496, 61595), (12319, 52480), (12416, 52070), (13120, 49276), (15520, 41656), (15908, 40640), (16256, 39770), (19885, 32512), (20320, 31816), (20828, 31040), (24638, 26240), (24832, 26035)]