643543880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{491}}^1$

素因数の和:691

約数の個数: 128

約数和(自身を含む): 1723023360

約数和(自身を除く): 1079479480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 151, 155, 217, 248, 280, 302, 310, 434, 491, 604, 620, 755, 868, 982, 1057, 1085, 1208, 1240, 1510, 1736, 1964, 2114, 2170, 2455, 3020, 3437, 3928, 4228, 4340, 4681, 4910, 5285, 6040, 6874, 8456, 8680, 9362, 9820, 10570, 13748, 15221, 17185, 18724, 19640, 21140, 23405, 27496, 30442, 32767, 34370, 37448, 42280, 46810, 60884, 65534, 68740, 74141, 76105, 93620, 106547, 121768, 131068, 137480, 148282, 152210, 163835, 187240, 213094, 262136, 296564, 304420, 327670, 370705, 426188, 518987, 532735, 593128, 608840, 655340, 741410, 852376, 1037974, 1065470, 1310680, 1482820, 2075948, 2130940, 2298371, 2594935, 2965640, 4151896, 4261880, 4596742, 5189870, 9193484, 10379740, 11491855, 16088597, 18386968, 20759480, 22983710, 32177194, 45967420, 64354388, 80442985, 91934840, 128708776, 160885970, 321771940, 643543880]

約数ペア:

[(1, 643543880), (2, 321771940), (4, 160885970), (5, 128708776), (7, 91934840), (8, 80442985), (10, 64354388), (14, 45967420), (20, 32177194), (28, 22983710), (31, 20759480), (35, 18386968), (40, 16088597), (56, 11491855), (62, 10379740), (70, 9193484), (124, 5189870), (140, 4596742), (151, 4261880), (155, 4151896), (217, 2965640), (248, 2594935), (280, 2298371), (302, 2130940), (310, 2075948), (434, 1482820), (491, 1310680), (604, 1065470), (620, 1037974), (755, 852376), (868, 741410), (982, 655340), (1057, 608840), (1085, 593128), (1208, 532735), (1240, 518987), (1510, 426188), (1736, 370705), (1964, 327670), (2114, 304420), (2170, 296564), (2455, 262136), (3020, 213094), (3437, 187240), (3928, 163835), (4228, 152210), (4340, 148282), (4681, 137480), (4910, 131068), (5285, 121768), (6040, 106547), (6874, 93620), (8456, 76105), (8680, 74141), (9362, 68740), (9820, 65534), (10570, 60884), (13748, 46810), (15221, 42280), (17185, 37448), (18724, 34370), (19640, 32767), (21140, 30442), (23405, 27496)]