1306400

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:114

約数の個数: 72

約数和(自身を含む): 3374784

約数和(自身を除く): 2068384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 71, 80, 92, 100, 115, 142, 160, 184, 200, 230, 284, 355, 368, 400, 460, 568, 575, 710, 736, 800, 920, 1136, 1150, 1420, 1633, 1775, 1840, 2272, 2300, 2840, 3266, 3550, 3680, 4600, 5680, 6532, 7100, 8165, 9200, 11360, 13064, 14200, 16330, 18400, 26128, 28400, 32660, 40825, 52256, 56800, 65320, 81650, 130640, 163300, 261280, 326600, 653200, 1306400]

約数ペア:

[(1, 1306400), (2, 653200), (4, 326600), (5, 261280), (8, 163300), (10, 130640), (16, 81650), (20, 65320), (23, 56800), (25, 52256), (32, 40825), (40, 32660), (46, 28400), (50, 26128), (71, 18400), (80, 16330), (92, 14200), (100, 13064), (115, 11360), (142, 9200), (160, 8165), (184, 7100), (200, 6532), (230, 5680), (284, 4600), (355, 3680), (368, 3550), (400, 3266), (460, 2840), (568, 2300), (575, 2272), (710, 1840), (736, 1775), (800, 1633), (920, 1420), (1136, 1150)]