201919905

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{599}}^1$

素因数の和:851

約数の個数: 64

約数和(自身を含む): 393984000

約数和(自身を除く): 192064095

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 135, 165, 227, 297, 495, 599, 681, 1135, 1485, 1797, 2043, 2497, 2995, 3405, 5391, 6129, 6589, 7491, 8985, 10215, 12485, 16173, 19767, 22473, 26955, 30645, 32945, 37455, 59301, 67419, 80865, 98835, 112365, 135973, 177903, 296505, 337095, 407919, 679865, 889515, 1223757, 1495703, 2039595, 3671271, 4487109, 6118785, 7478515, 13461327, 18356355, 22435545, 40383981, 67306635, 201919905]

約数ペア:

[(1, 201919905), (3, 67306635), (5, 40383981), (9, 22435545), (11, 18356355), (15, 13461327), (27, 7478515), (33, 6118785), (45, 4487109), (55, 3671271), (99, 2039595), (135, 1495703), (165, 1223757), (227, 889515), (297, 679865), (495, 407919), (599, 337095), (681, 296505), (1135, 177903), (1485, 135973), (1797, 112365), (2043, 98835), (2497, 80865), (2995, 67419), (3405, 59301), (5391, 37455), (6129, 32945), (6589, 30645), (7491, 26955), (8985, 22473), (10215, 19767), (12485, 16173)]