20454165

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 38188800

約数和(自身を除く): 17734635

約数列:

[1, 3, 5, 9, 15, 19, 45, 47, 57, 95, 141, 171, 235, 285, 423, 509, 705, 855, 893, 1527, 2115, 2545, 2679, 4465, 4581, 7635, 8037, 9671, 13395, 22905, 23923, 29013, 40185, 48355, 71769, 87039, 119615, 145065, 215307, 358845, 435195, 454537, 1076535, 1363611, 2272685, 4090833, 6818055, 20454165]

約数ペア:

[(1, 20454165), (3, 6818055), (5, 4090833), (9, 2272685), (15, 1363611), (19, 1076535), (45, 454537), (47, 435195), (57, 358845), (95, 215307), (141, 145065), (171, 119615), (235, 87039), (285, 71769), (423, 48355), (509, 40185), (705, 29013), (855, 23923), (893, 22905), (1527, 13395), (2115, 9671), (2545, 8037), (2679, 7635), (4465, 4581)]