205996980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{70067}}^1$

素因数の和:70093

約数の個数: 72

約数和(自身を含む): 670971168

約数和(自身を除く): 464974188

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 70067, 140134, 210201, 280268, 350335, 420402, 490469, 700670, 840804, 980938, 1051005, 1401340, 1471407, 1961876, 2102010, 2452345, 2942814, 3433283, 4204020, 4904690, 5885628, 6866566, 7357035, 9809380, 10299849, 13733132, 14714070, 17166415, 20599698, 29428140, 34332830, 41199396, 51499245, 68665660, 102998490, 205996980]

約数ペア:

[(1, 205996980), (2, 102998490), (3, 68665660), (4, 51499245), (5, 41199396), (6, 34332830), (7, 29428140), (10, 20599698), (12, 17166415), (14, 14714070), (15, 13733132), (20, 10299849), (21, 9809380), (28, 7357035), (30, 6866566), (35, 5885628), (42, 4904690), (49, 4204020), (60, 3433283), (70, 2942814), (84, 2452345), (98, 2102010), (105, 1961876), (140, 1471407), (147, 1401340), (196, 1051005), (210, 980938), (245, 840804), (294, 700670), (420, 490469), (490, 420402), (588, 350335), (735, 280268), (980, 210201), (1470, 140134), (2940, 70067)]