20007883600

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1613539}}^1$

素因数の和:1613588

約数の個数: 60

約数和(自身を含む): 49619582080

約数和(自身を除く): 29611698480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 12400, 1613539, 3227078, 6454156, 8067695, 12908312, 16135390, 25816624, 32270780, 40338475, 50019709, 64541560, 80676950, 100039418, 129083120, 161353900, 200078836, 250098545, 322707800, 400157672, 500197090, 645415600, 800315344, 1000394180, 1250492725, 2000788360, 2500985450, 4001576720, 5001970900, 10003941800, 20007883600]

約数ペア:

[(1, 20007883600), (2, 10003941800), (4, 5001970900), (5, 4001576720), (8, 2500985450), (10, 2000788360), (16, 1250492725), (20, 1000394180), (25, 800315344), (31, 645415600), (40, 500197090), (50, 400157672), (62, 322707800), (80, 250098545), (100, 200078836), (124, 161353900), (155, 129083120), (200, 100039418), (248, 80676950), (310, 64541560), (400, 50019709), (496, 40338475), (620, 32270780), (775, 25816624), (1240, 16135390), (1550, 12908312), (2480, 8067695), (3100, 6454156), (6200, 3227078), (12400, 1613539)]