18730400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1801}}^1$

素因数の和:1834

約数の個数: 72

約数和(自身を含む): 49270284

約数和(自身を除く): 30539884

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 1801, 2080, 2600, 3602, 5200, 7204, 9005, 10400, 14408, 18010, 23413, 28816, 36020, 45025, 46826, 57632, 72040, 90050, 93652, 117065, 144080, 180100, 187304, 234130, 288160, 360200, 374608, 468260, 585325, 720400, 749216, 936520, 1170650, 1440800, 1873040, 2341300, 3746080, 4682600, 9365200, 18730400]

約数ペア:

[(1, 18730400), (2, 9365200), (4, 4682600), (5, 3746080), (8, 2341300), (10, 1873040), (13, 1440800), (16, 1170650), (20, 936520), (25, 749216), (26, 720400), (32, 585325), (40, 468260), (50, 374608), (52, 360200), (65, 288160), (80, 234130), (100, 187304), (104, 180100), (130, 144080), (160, 117065), (200, 93652), (208, 90050), (260, 72040), (325, 57632), (400, 46826), (416, 45025), (520, 36020), (650, 28816), (800, 23413), (1040, 18010), (1300, 14408), (1801, 10400), (2080, 9005), (2600, 7204), (3602, 5200)]