30906920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3697}}^1$

素因数の和:3738

約数の個数: 64

約数和(自身を含む): 79876800

約数和(自身を除く): 48969880

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 3697, 4180, 7394, 8360, 14788, 18485, 29576, 36970, 40667, 70243, 73940, 81334, 140486, 147880, 162668, 203335, 280972, 325336, 351215, 406670, 561944, 702430, 772673, 813340, 1404860, 1545346, 1626680, 2809720, 3090692, 3863365, 6181384, 7726730, 15453460, 30906920]

約数ペア:

[(1, 30906920), (2, 15453460), (4, 7726730), (5, 6181384), (8, 3863365), (10, 3090692), (11, 2809720), (19, 1626680), (20, 1545346), (22, 1404860), (38, 813340), (40, 772673), (44, 702430), (55, 561944), (76, 406670), (88, 351215), (95, 325336), (110, 280972), (152, 203335), (190, 162668), (209, 147880), (220, 140486), (380, 81334), (418, 73940), (440, 70243), (760, 40667), (836, 36970), (1045, 29576), (1672, 18485), (2090, 14788), (3697, 8360), (4180, 7394)]