253237760

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3191}}^1$

素因数の和:3245

約数の個数: 80

約数和(自身を含む): 626959872

約数和(自身を除く): 373722112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3191, 3968, 4960, 6382, 7936, 9920, 12764, 15872, 15955, 19840, 25528, 31910, 39680, 51056, 63820, 79360, 98921, 102112, 127640, 197842, 204224, 255280, 395684, 408448, 494605, 510560, 791368, 816896, 989210, 1021120, 1582736, 1633792, 1978420, 2042240, 3165472, 3956840, 4084480, 6330944, 7913680, 8168960, 12661888, 15827360, 25323776, 31654720, 50647552, 63309440, 126618880, 253237760]

約数ペア:

[(1, 253237760), (2, 126618880), (4, 63309440), (5, 50647552), (8, 31654720), (10, 25323776), (16, 15827360), (20, 12661888), (31, 8168960), (32, 7913680), (40, 6330944), (62, 4084480), (64, 3956840), (80, 3165472), (124, 2042240), (128, 1978420), (155, 1633792), (160, 1582736), (248, 1021120), (256, 989210), (310, 816896), (320, 791368), (496, 510560), (512, 494605), (620, 408448), (640, 395684), (992, 255280), (1240, 204224), (1280, 197842), (1984, 127640), (2480, 102112), (2560, 98921), (3191, 79360), (3968, 63820), (4960, 51056), (6382, 39680), (7936, 31910), (9920, 25528), (12764, 19840), (15872, 15955)]