21242991700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{340979}}^1$

素因数の和:341089

約数の個数: 72

約数和(自身を含む): 53274715200

約数和(自身を除く): 32031723500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 89, 100, 140, 175, 178, 350, 356, 445, 623, 700, 890, 1246, 1780, 2225, 2492, 3115, 4450, 6230, 8900, 12460, 15575, 31150, 62300, 340979, 681958, 1363916, 1704895, 2386853, 3409790, 4773706, 6819580, 8524475, 9547412, 11934265, 17048950, 23868530, 30347131, 34097900, 47737060, 59671325, 60694262, 119342650, 121388524, 151735655, 212429917, 238685300, 303471310, 424859834, 606942620, 758678275, 849719668, 1062149585, 1517356550, 2124299170, 3034713100, 4248598340, 5310747925, 10621495850, 21242991700]

約数ペア:

[(1, 21242991700), (2, 10621495850), (4, 5310747925), (5, 4248598340), (7, 3034713100), (10, 2124299170), (14, 1517356550), (20, 1062149585), (25, 849719668), (28, 758678275), (35, 606942620), (50, 424859834), (70, 303471310), (89, 238685300), (100, 212429917), (140, 151735655), (175, 121388524), (178, 119342650), (350, 60694262), (356, 59671325), (445, 47737060), (623, 34097900), (700, 30347131), (890, 23868530), (1246, 17048950), (1780, 11934265), (2225, 9547412), (2492, 8524475), (3115, 6819580), (4450, 4773706), (6230, 3409790), (8900, 2386853), (12460, 1704895), (15575, 1363916), (31150, 681958), (62300, 340979)]