215222975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2423}}^1$

素因数の和:2480

約数の個数: 48

約数和(自身を含む): 324622080

約数和(自身を除く): 109399105

約数列:

[1, 5, 11, 17, 19, 25, 55, 85, 95, 187, 209, 275, 323, 425, 475, 935, 1045, 1615, 2423, 3553, 4675, 5225, 8075, 12115, 17765, 26653, 41191, 46037, 60575, 88825, 133265, 205955, 230185, 453101, 506407, 666325, 782629, 1029775, 1150925, 2265505, 2532035, 3913145, 8608919, 11327525, 12660175, 19565725, 43044595, 215222975]

約数ペア:

[(1, 215222975), (5, 43044595), (11, 19565725), (17, 12660175), (19, 11327525), (25, 8608919), (55, 3913145), (85, 2532035), (95, 2265505), (187, 1150925), (209, 1029775), (275, 782629), (323, 666325), (425, 506407), (475, 453101), (935, 230185), (1045, 205955), (1615, 133265), (2423, 88825), (3553, 60575), (4675, 46037), (5225, 41191), (8075, 26653), (12115, 17765)]