636991990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{10289}}^1$

素因数の和:10488

約数の個数: 32

約数和(自身を含む): 1182444480

約数和(自身を除く): 545452490

約数列:

[1, 2, 5, 10, 41, 82, 151, 205, 302, 410, 755, 1510, 6191, 10289, 12382, 20578, 30955, 51445, 61910, 102890, 421849, 843698, 1553639, 2109245, 3107278, 4218490, 7768195, 15536390, 63699199, 127398398, 318495995, 636991990]

約数ペア:

[(1, 636991990), (2, 318495995), (5, 127398398), (10, 63699199), (41, 15536390), (82, 7768195), (151, 4218490), (205, 3107278), (302, 2109245), (410, 1553639), (755, 843698), (1510, 421849), (6191, 102890), (10289, 61910), (12382, 51445), (20578, 30955)]