640354560

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4507}}^1$

素因数の和:4568

約数の個数: 144

約数和(自身を含む): 2100872256

約数和(自身を除く): 1460517696

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 128, 148, 160, 185, 192, 222, 240, 256, 296, 320, 370, 384, 444, 480, 555, 592, 640, 740, 768, 888, 960, 1110, 1184, 1280, 1480, 1776, 1920, 2220, 2368, 2960, 3552, 3840, 4440, 4507, 4736, 5920, 7104, 8880, 9014, 9472, 11840, 13521, 14208, 17760, 18028, 22535, 23680, 27042, 28416, 35520, 36056, 45070, 47360, 54084, 67605, 71040, 72112, 90140, 108168, 135210, 142080, 144224, 166759, 180280, 216336, 270420, 288448, 333518, 360560, 432672, 500277, 540840, 576896, 667036, 721120, 833795, 865344, 1000554, 1081680, 1153792, 1334072, 1442240, 1667590, 1730688, 2001108, 2163360, 2501385, 2668144, 2884480, 3335180, 3461376, 4002216, 4326720, 5002770, 5336288, 5768960, 6670360, 8004432, 8653440, 10005540, 10672576, 13340720, 16008864, 17306880, 20011080, 21345152, 26681440, 32017728, 40022160, 42690304, 53362880, 64035456, 80044320, 106725760, 128070912, 160088640, 213451520, 320177280, 640354560]

約数ペア:

[(1, 640354560), (2, 320177280), (3, 213451520), (4, 160088640), (5, 128070912), (6, 106725760), (8, 80044320), (10, 64035456), (12, 53362880), (15, 42690304), (16, 40022160), (20, 32017728), (24, 26681440), (30, 21345152), (32, 20011080), (37, 17306880), (40, 16008864), (48, 13340720), (60, 10672576), (64, 10005540), (74, 8653440), (80, 8004432), (96, 6670360), (111, 5768960), (120, 5336288), (128, 5002770), (148, 4326720), (160, 4002216), (185, 3461376), (192, 3335180), (222, 2884480), (240, 2668144), (256, 2501385), (296, 2163360), (320, 2001108), (370, 1730688), (384, 1667590), (444, 1442240), (480, 1334072), (555, 1153792), (592, 1081680), (640, 1000554), (740, 865344), (768, 833795), (888, 721120), (960, 667036), (1110, 576896), (1184, 540840), (1280, 500277), (1480, 432672), (1776, 360560), (1920, 333518), (2220, 288448), (2368, 270420), (2960, 216336), (3552, 180280), (3840, 166759), (4440, 144224), (4507, 142080), (4736, 135210), (5920, 108168), (7104, 90140), (8880, 72112), (9014, 71040), (9472, 67605), (11840, 54084), (13521, 47360), (14208, 45070), (17760, 36056), (18028, 35520), (22535, 28416), (23680, 27042)]