30919580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 67156320

約数和(自身を除く): 36236740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 157, 172, 215, 229, 314, 430, 458, 628, 785, 860, 916, 1145, 1570, 2290, 3140, 4580, 6751, 9847, 13502, 19694, 27004, 33755, 35953, 39388, 49235, 67510, 71906, 98470, 135020, 143812, 179765, 196940, 359530, 719060, 1545979, 3091958, 6183916, 7729895, 15459790, 30919580]

約数ペア:

[(1, 30919580), (2, 15459790), (4, 7729895), (5, 6183916), (10, 3091958), (20, 1545979), (43, 719060), (86, 359530), (157, 196940), (172, 179765), (215, 143812), (229, 135020), (314, 98470), (430, 71906), (458, 67510), (628, 49235), (785, 39388), (860, 35953), (916, 33755), (1145, 27004), (1570, 19694), (2290, 13502), (3140, 9847), (4580, 6751)]