86840650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:320

約数の個数: 72

約数和(自身を含む): 179720640

約数和(自身を除く): 92879990

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 169, 215, 239, 325, 338, 430, 478, 559, 650, 845, 1075, 1118, 1195, 1690, 2150, 2390, 2795, 3107, 4225, 5590, 5975, 6214, 7267, 8450, 10277, 11950, 13975, 14534, 15535, 20554, 27950, 31070, 36335, 40391, 51385, 72670, 77675, 80782, 102770, 133601, 155350, 181675, 201955, 256925, 267202, 363350, 403910, 513850, 668005, 1009775, 1336010, 1736813, 2019550, 3340025, 3473626, 6680050, 8684065, 17368130, 43420325, 86840650]

約数ペア:

[(1, 86840650), (2, 43420325), (5, 17368130), (10, 8684065), (13, 6680050), (25, 3473626), (26, 3340025), (43, 2019550), (50, 1736813), (65, 1336010), (86, 1009775), (130, 668005), (169, 513850), (215, 403910), (239, 363350), (325, 267202), (338, 256925), (430, 201955), (478, 181675), (559, 155350), (650, 133601), (845, 102770), (1075, 80782), (1118, 77675), (1195, 72670), (1690, 51385), (2150, 40391), (2390, 36335), (2795, 31070), (3107, 27950), (4225, 20554), (5590, 15535), (5975, 14534), (6214, 13975), (7267, 11950), (8450, 10277)]