8638140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:307

約数の個数: 96

約数和(自身を含む): 28030464

約数和(自身を除く): 19392324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 131, 140, 157, 210, 262, 314, 393, 420, 471, 524, 628, 655, 785, 786, 917, 942, 1099, 1310, 1570, 1572, 1834, 1884, 1965, 2198, 2355, 2620, 2751, 3140, 3297, 3668, 3930, 4396, 4585, 4710, 5495, 5502, 6594, 7860, 9170, 9420, 10990, 11004, 13188, 13755, 16485, 18340, 20567, 21980, 27510, 32970, 41134, 55020, 61701, 65940, 82268, 102835, 123402, 143969, 205670, 246804, 287938, 308505, 411340, 431907, 575876, 617010, 719845, 863814, 1234020, 1439690, 1727628, 2159535, 2879380, 4319070, 8638140]

約数ペア:

[(1, 8638140), (2, 4319070), (3, 2879380), (4, 2159535), (5, 1727628), (6, 1439690), (7, 1234020), (10, 863814), (12, 719845), (14, 617010), (15, 575876), (20, 431907), (21, 411340), (28, 308505), (30, 287938), (35, 246804), (42, 205670), (60, 143969), (70, 123402), (84, 102835), (105, 82268), (131, 65940), (140, 61701), (157, 55020), (210, 41134), (262, 32970), (314, 27510), (393, 21980), (420, 20567), (471, 18340), (524, 16485), (628, 13755), (655, 13188), (785, 11004), (786, 10990), (917, 9420), (942, 9170), (1099, 7860), (1310, 6594), (1570, 5502), (1572, 5495), (1834, 4710), (1884, 4585), (1965, 4396), (2198, 3930), (2355, 3668), (2620, 3297), (2751, 3140)]