210180100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1511}}^1$

素因数の和:1645

約数の個数: 72

約数和(自身を含む): 496093248

約数和(自身を除く): 285913148

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 107, 130, 214, 260, 325, 428, 535, 650, 1070, 1300, 1391, 1511, 2140, 2675, 2782, 3022, 5350, 5564, 6044, 6955, 7555, 10700, 13910, 15110, 19643, 27820, 30220, 34775, 37775, 39286, 69550, 75550, 78572, 98215, 139100, 151100, 161677, 196430, 323354, 392860, 491075, 646708, 808385, 982150, 1616770, 1964300, 2101801, 3233540, 4041925, 4203602, 8083850, 8407204, 10509005, 16167700, 21018010, 42036020, 52545025, 105090050, 210180100]

約数ペア:

[(1, 210180100), (2, 105090050), (4, 52545025), (5, 42036020), (10, 21018010), (13, 16167700), (20, 10509005), (25, 8407204), (26, 8083850), (50, 4203602), (52, 4041925), (65, 3233540), (100, 2101801), (107, 1964300), (130, 1616770), (214, 982150), (260, 808385), (325, 646708), (428, 491075), (535, 392860), (650, 323354), (1070, 196430), (1300, 161677), (1391, 151100), (1511, 139100), (2140, 98215), (2675, 78572), (2782, 75550), (3022, 69550), (5350, 39286), (5564, 37775), (6044, 34775), (6955, 30220), (7555, 27820), (10700, 19643), (13910, 15110)]