16816020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21559}}^1$

素因数の和:21584

約数の個数: 48

約数和(自身を含む): 50709120

約数和(自身を除く): 33893100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 21559, 43118, 64677, 86236, 107795, 129354, 215590, 258708, 280267, 323385, 431180, 560534, 646770, 840801, 1121068, 1293540, 1401335, 1681602, 2802670, 3363204, 4204005, 5605340, 8408010, 16816020]

約数ペア:

[(1, 16816020), (2, 8408010), (3, 5605340), (4, 4204005), (5, 3363204), (6, 2802670), (10, 1681602), (12, 1401335), (13, 1293540), (15, 1121068), (20, 840801), (26, 646770), (30, 560534), (39, 431180), (52, 323385), (60, 280267), (65, 258708), (78, 215590), (130, 129354), (156, 107795), (195, 86236), (260, 64677), (390, 43118), (780, 21559)]