237982420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:605

約数の個数: 72

約数和(自身を含む): 545552280

約数和(自身を除く): 307569860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 181, 260, 338, 362, 389, 676, 724, 778, 845, 905, 1556, 1690, 1810, 1945, 2353, 3380, 3620, 3890, 4706, 5057, 7780, 9412, 10114, 11765, 20228, 23530, 25285, 30589, 47060, 50570, 61178, 65741, 70409, 101140, 122356, 131482, 140818, 152945, 262964, 281636, 305890, 328705, 352045, 611780, 657410, 704090, 915317, 1314820, 1408180, 1830634, 3661268, 4576585, 9153170, 11899121, 18306340, 23798242, 47596484, 59495605, 118991210, 237982420]

約数ペア:

[(1, 237982420), (2, 118991210), (4, 59495605), (5, 47596484), (10, 23798242), (13, 18306340), (20, 11899121), (26, 9153170), (52, 4576585), (65, 3661268), (130, 1830634), (169, 1408180), (181, 1314820), (260, 915317), (338, 704090), (362, 657410), (389, 611780), (676, 352045), (724, 328705), (778, 305890), (845, 281636), (905, 262964), (1556, 152945), (1690, 140818), (1810, 131482), (1945, 122356), (2353, 101140), (3380, 70409), (3620, 65741), (3890, 61178), (4706, 50570), (5057, 47060), (7780, 30589), (9412, 25285), (10114, 23530), (11765, 20228)]