21400600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8231}}^1$

素因数の和:8260

約数の個数: 48

約数和(自身を含む): 53590320

約数和(自身を除く): 32189720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 8231, 16462, 32924, 41155, 65848, 82310, 107003, 164620, 205775, 214006, 329240, 411550, 428012, 535015, 823100, 856024, 1070030, 1646200, 2140060, 2675075, 4280120, 5350150, 10700300, 21400600]

約数ペア:

[(1, 21400600), (2, 10700300), (4, 5350150), (5, 4280120), (8, 2675075), (10, 2140060), (13, 1646200), (20, 1070030), (25, 856024), (26, 823100), (40, 535015), (50, 428012), (52, 411550), (65, 329240), (100, 214006), (104, 205775), (130, 164620), (200, 107003), (260, 82310), (325, 65848), (520, 41155), (650, 32924), (1300, 16462), (2600, 8231)]