638974770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{23227}}^1$

素因数の和:23375

約数の個数: 64

約数和(自身を含む): 1766071296

約数和(自身を除く): 1127096526

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 131, 210, 262, 393, 655, 786, 917, 1310, 1834, 1965, 2751, 3930, 4585, 5502, 9170, 13755, 23227, 27510, 46454, 69681, 116135, 139362, 162589, 232270, 325178, 348405, 487767, 696810, 812945, 975534, 1625890, 2438835, 3042737, 4877670, 6085474, 9128211, 15213685, 18256422, 21299159, 30427370, 42598318, 45641055, 63897477, 91282110, 106495795, 127794954, 212991590, 319487385, 638974770]

約数ペア:

[(1, 638974770), (2, 319487385), (3, 212991590), (5, 127794954), (6, 106495795), (7, 91282110), (10, 63897477), (14, 45641055), (15, 42598318), (21, 30427370), (30, 21299159), (35, 18256422), (42, 15213685), (70, 9128211), (105, 6085474), (131, 4877670), (210, 3042737), (262, 2438835), (393, 1625890), (655, 975534), (786, 812945), (917, 696810), (1310, 487767), (1834, 348405), (1965, 325178), (2751, 232270), (3930, 162589), (4585, 139362), (5502, 116135), (9170, 69681), (13755, 46454), (23227, 27510)]