648076720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{28031}}^1$

素因数の和:28078

約数の個数: 60

約数和(自身を含む): 1600683264

約数和(自身を除く): 952606544

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 1156, 1360, 1445, 2312, 2890, 4624, 5780, 11560, 23120, 28031, 56062, 112124, 140155, 224248, 280310, 448496, 476527, 560620, 953054, 1121240, 1906108, 2242480, 2382635, 3812216, 4765270, 7624432, 8100959, 9530540, 16201918, 19061080, 32403836, 38122160, 40504795, 64807672, 81009590, 129615344, 162019180, 324038360, 648076720]

約数ペア:

[(1, 648076720), (2, 324038360), (4, 162019180), (5, 129615344), (8, 81009590), (10, 64807672), (16, 40504795), (17, 38122160), (20, 32403836), (34, 19061080), (40, 16201918), (68, 9530540), (80, 8100959), (85, 7624432), (136, 4765270), (170, 3812216), (272, 2382635), (289, 2242480), (340, 1906108), (578, 1121240), (680, 953054), (1156, 560620), (1360, 476527), (1445, 448496), (2312, 280310), (2890, 224248), (4624, 140155), (5780, 112124), (11560, 56062), (23120, 28031)]