402220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:59

約数の個数: 72

約数和(自身を含む): 1106784

約数和(自身を除く): 704564

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 52, 65, 68, 70, 85, 91, 119, 130, 140, 169, 170, 182, 221, 238, 260, 338, 340, 364, 442, 455, 476, 595, 676, 845, 884, 910, 1105, 1183, 1190, 1547, 1690, 1820, 2210, 2366, 2380, 2873, 3094, 3380, 4420, 4732, 5746, 5915, 6188, 7735, 11492, 11830, 14365, 15470, 20111, 23660, 28730, 30940, 40222, 57460, 80444, 100555, 201110, 402220]

約数ペア:

[(1, 402220), (2, 201110), (4, 100555), (5, 80444), (7, 57460), (10, 40222), (13, 30940), (14, 28730), (17, 23660), (20, 20111), (26, 15470), (28, 14365), (34, 11830), (35, 11492), (52, 7735), (65, 6188), (68, 5915), (70, 5746), (85, 4732), (91, 4420), (119, 3380), (130, 3094), (140, 2873), (169, 2380), (170, 2366), (182, 2210), (221, 1820), (238, 1690), (260, 1547), (338, 1190), (340, 1183), (364, 1105), (442, 910), (455, 884), (476, 845), (595, 676)]