20335960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 48470400

約数和(自身を除く): 28134440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 58, 94, 116, 145, 188, 232, 235, 290, 373, 376, 470, 580, 746, 940, 1160, 1363, 1492, 1865, 1880, 2726, 2984, 3730, 5452, 6815, 7460, 10817, 10904, 13630, 14920, 17531, 21634, 27260, 35062, 43268, 54085, 54520, 70124, 86536, 87655, 108170, 140248, 175310, 216340, 350620, 432680, 508399, 701240, 1016798, 2033596, 2541995, 4067192, 5083990, 10167980, 20335960]

約数ペア:

[(1, 20335960), (2, 10167980), (4, 5083990), (5, 4067192), (8, 2541995), (10, 2033596), (20, 1016798), (29, 701240), (40, 508399), (47, 432680), (58, 350620), (94, 216340), (116, 175310), (145, 140248), (188, 108170), (232, 87655), (235, 86536), (290, 70124), (373, 54520), (376, 54085), (470, 43268), (580, 35062), (746, 27260), (940, 21634), (1160, 17531), (1363, 14920), (1492, 13630), (1865, 10904), (1880, 10817), (2726, 7460), (2984, 6815), (3730, 5452)]