255137440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51439}}^1$

素因数の和:51485

約数の個数: 48

約数和(自身を含む): 622218240

約数和(自身を除く): 367080800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 51439, 102878, 205756, 257195, 411512, 514390, 823024, 1028780, 1594609, 1646048, 2057560, 3189218, 4115120, 6378436, 7973045, 8230240, 12756872, 15946090, 25513744, 31892180, 51027488, 63784360, 127568720, 255137440]

約数ペア:

[(1, 255137440), (2, 127568720), (4, 63784360), (5, 51027488), (8, 31892180), (10, 25513744), (16, 15946090), (20, 12756872), (31, 8230240), (32, 7973045), (40, 6378436), (62, 4115120), (80, 3189218), (124, 2057560), (155, 1646048), (160, 1594609), (248, 1028780), (310, 823024), (496, 514390), (620, 411512), (992, 257195), (1240, 205756), (2480, 102878), (4960, 51439)]