317804560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{128147}}^1$

素因数の和:128191

約数の個数: 40

約数和(自身を含む): 762736896

約数和(自身を除く): 444932336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 128147, 256294, 512588, 640735, 1025176, 1281470, 2050352, 2562940, 3972557, 5125880, 7945114, 10251760, 15890228, 19862785, 31780456, 39725570, 63560912, 79451140, 158902280, 317804560]

約数ペア:

[(1, 317804560), (2, 158902280), (4, 79451140), (5, 63560912), (8, 39725570), (10, 31780456), (16, 19862785), (20, 15890228), (31, 10251760), (40, 7945114), (62, 5125880), (80, 3972557), (124, 2562940), (155, 2050352), (248, 1281470), (310, 1025176), (496, 640735), (620, 512588), (1240, 256294), (2480, 128147)]