407394560

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10267}}^1$

素因数の和:10319

約数の個数: 72

約数和(自身を含む): 1007414016

約数和(自身を除く): 600019456

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, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 10267, 19840, 20534, 39680, 41068, 51335, 82136, 102670, 164272, 205340, 318277, 328544, 410680, 636554, 657088, 821360, 1273108, 1314176, 1591385, 1642720, 2546216, 2628352, 3182770, 3285440, 5092432, 6365540, 6570880, 10184864, 12731080, 13141760, 20369728, 25462160, 40739456, 50924320, 81478912, 101848640, 203697280, 407394560]

約数ペア:

[(1, 407394560), (2, 203697280), (4, 101848640), (5, 81478912), (8, 50924320), (10, 40739456), (16, 25462160), (20, 20369728), (31, 13141760), (32, 12731080), (40, 10184864), (62, 6570880), (64, 6365540), (80, 5092432), (124, 3285440), (128, 3182770), (155, 2628352), (160, 2546216), (248, 1642720), (256, 1591385), (310, 1314176), (320, 1273108), (496, 821360), (620, 657088), (640, 636554), (992, 410680), (1240, 328544), (1280, 318277), (1984, 205340), (2480, 164272), (3968, 102670), (4960, 82136), (7936, 51335), (9920, 41068), (10267, 39680), (19840, 20534)]