18381940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{773}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 40960080

約数和(自身を除く): 22578140

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 773, 820, 1189, 1546, 2378, 3092, 3865, 4756, 5945, 7730, 11890, 15460, 22417, 23780, 31693, 44834, 63386, 89668, 112085, 126772, 158465, 224170, 316930, 448340, 633860, 919097, 1838194, 3676388, 4595485, 9190970, 18381940]

約数ペア:

[(1, 18381940), (2, 9190970), (4, 4595485), (5, 3676388), (10, 1838194), (20, 919097), (29, 633860), (41, 448340), (58, 316930), (82, 224170), (116, 158465), (145, 126772), (164, 112085), (205, 89668), (290, 63386), (410, 44834), (580, 31693), (773, 23780), (820, 22417), (1189, 15460), (1546, 11890), (2378, 7730), (3092, 5945), (3865, 4756)]