899840

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:77

約数の個数: 72

約数和(自身を含む): 2330160

約数和(自身を除く): 1430320

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, 256, 296, 304, 320, 370, 380, 592, 608, 640, 703, 740, 760, 1184, 1216, 1280, 1406, 1480, 1520, 2368, 2432, 2812, 2960, 3040, 3515, 4736, 4864, 5624, 5920, 6080, 7030, 9472, 11248, 11840, 12160, 14060, 22496, 23680, 24320, 28120, 44992, 47360, 56240, 89984, 112480, 179968, 224960, 449920, 899840]

約数ペア:

[(1, 899840), (2, 449920), (4, 224960), (5, 179968), (8, 112480), (10, 89984), (16, 56240), (19, 47360), (20, 44992), (32, 28120), (37, 24320), (38, 23680), (40, 22496), (64, 14060), (74, 12160), (76, 11840), (80, 11248), (95, 9472), (128, 7030), (148, 6080), (152, 5920), (160, 5624), (185, 4864), (190, 4736), (256, 3515), (296, 3040), (304, 2960), (320, 2812), (370, 2432), (380, 2368), (592, 1520), (608, 1480), (640, 1406), (703, 1280), (740, 1216), (760, 1184)]