215465900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1549}}^1$

素因数の和:1683

約数の個数: 72

約数和(自身を含む): 508561200

約数和(自身を除く): 293095300

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, 1549, 2140, 2675, 2782, 3098, 5350, 5564, 6196, 6955, 7745, 10700, 13910, 15490, 20137, 27820, 30980, 34775, 38725, 40274, 69550, 77450, 80548, 100685, 139100, 154900, 165743, 201370, 331486, 402740, 503425, 662972, 828715, 1006850, 1657430, 2013700, 2154659, 3314860, 4143575, 4309318, 8287150, 8618636, 10773295, 16574300, 21546590, 43093180, 53866475, 107732950, 215465900]

約数ペア:

[(1, 215465900), (2, 107732950), (4, 53866475), (5, 43093180), (10, 21546590), (13, 16574300), (20, 10773295), (25, 8618636), (26, 8287150), (50, 4309318), (52, 4143575), (65, 3314860), (100, 2154659), (107, 2013700), (130, 1657430), (214, 1006850), (260, 828715), (325, 662972), (428, 503425), (535, 402740), (650, 331486), (1070, 201370), (1300, 165743), (1391, 154900), (1549, 139100), (2140, 100685), (2675, 80548), (2782, 77450), (3098, 69550), (5350, 40274), (5564, 38725), (6196, 34775), (6955, 30980), (7745, 27820), (10700, 20137), (13910, 15490)]