19978950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{5791}}^1$

素因数の和:5829

約数の個数: 48

約数和(自身を含む): 51710976

約数和(自身を除く): 31732026

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 46, 50, 69, 75, 115, 138, 150, 230, 345, 575, 690, 1150, 1725, 3450, 5791, 11582, 17373, 28955, 34746, 57910, 86865, 133193, 144775, 173730, 266386, 289550, 399579, 434325, 665965, 799158, 868650, 1331930, 1997895, 3329825, 3995790, 6659650, 9989475, 19978950]

約数ペア:

[(1, 19978950), (2, 9989475), (3, 6659650), (5, 3995790), (6, 3329825), (10, 1997895), (15, 1331930), (23, 868650), (25, 799158), (30, 665965), (46, 434325), (50, 399579), (69, 289550), (75, 266386), (115, 173730), (138, 144775), (150, 133193), (230, 86865), (345, 57910), (575, 34746), (690, 28955), (1150, 17373), (1725, 11582), (3450, 5791)]