158703880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{977}}^1$

素因数の和:1150

約数の個数: 64

約数和(自身を含む): 371796480

約数和(自身を除く): 213092600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 524, 620, 655, 977, 1048, 1240, 1310, 1954, 2620, 3908, 4061, 4885, 5240, 7816, 8122, 9770, 16244, 19540, 20305, 30287, 32488, 39080, 40610, 60574, 81220, 121148, 127987, 151435, 162440, 242296, 255974, 302870, 511948, 605740, 639935, 1023896, 1211480, 1279870, 2559740, 3967597, 5119480, 7935194, 15870388, 19837985, 31740776, 39675970, 79351940, 158703880]

約数ペア:

[(1, 158703880), (2, 79351940), (4, 39675970), (5, 31740776), (8, 19837985), (10, 15870388), (20, 7935194), (31, 5119480), (40, 3967597), (62, 2559740), (124, 1279870), (131, 1211480), (155, 1023896), (248, 639935), (262, 605740), (310, 511948), (524, 302870), (620, 255974), (655, 242296), (977, 162440), (1048, 151435), (1240, 127987), (1310, 121148), (1954, 81220), (2620, 60574), (3908, 40610), (4061, 39080), (4885, 32488), (5240, 30287), (7816, 20305), (8122, 19540), (9770, 16244)]