449920

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:75

約数の個数: 64

約数和(自身を含む): 1162800

約数和(自身を除く): 712880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 37, 38, 40, 64, 74, 76, 80, 95, 128, 148, 152, 160, 185, 190, 296, 304, 320, 370, 380, 592, 608, 640, 703, 740, 760, 1184, 1216, 1406, 1480, 1520, 2368, 2432, 2812, 2960, 3040, 3515, 4736, 5624, 5920, 6080, 7030, 11248, 11840, 12160, 14060, 22496, 23680, 28120, 44992, 56240, 89984, 112480, 224960, 449920]

約数ペア:

[(1, 449920), (2, 224960), (4, 112480), (5, 89984), (8, 56240), (10, 44992), (16, 28120), (19, 23680), (20, 22496), (32, 14060), (37, 12160), (38, 11840), (40, 11248), (64, 7030), (74, 6080), (76, 5920), (80, 5624), (95, 4736), (128, 3515), (148, 3040), (152, 2960), (160, 2812), (185, 2432), (190, 2368), (296, 1520), (304, 1480), (320, 1406), (370, 1216), (380, 1184), (592, 760), (608, 740), (640, 703)]