205795460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41659}}^1$

素因数の和:41700

約数の個数: 48

約数和(自身を含む): 489921600

約数和(自身を除く): 284126140

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 41659, 83318, 166636, 208295, 416590, 541567, 791521, 833180, 1083134, 1583042, 2166268, 2707835, 3166084, 3957605, 5415670, 7915210, 10289773, 10831340, 15830420, 20579546, 41159092, 51448865, 102897730, 205795460]

約数ペア:

[(1, 205795460), (2, 102897730), (4, 51448865), (5, 41159092), (10, 20579546), (13, 15830420), (19, 10831340), (20, 10289773), (26, 7915210), (38, 5415670), (52, 3957605), (65, 3166084), (76, 2707835), (95, 2166268), (130, 1583042), (190, 1083134), (247, 833180), (260, 791521), (380, 541567), (494, 416590), (988, 208295), (1235, 166636), (2470, 83318), (4940, 41659)]