72782220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{173291}}^1$

素因数の和:173310

約数の個数: 48

約数和(自身を含む): 232904448

約数和(自身を除く): 160122228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 173291, 346582, 519873, 693164, 866455, 1039746, 1213037, 1732910, 2079492, 2426074, 2599365, 3465820, 3639111, 4852148, 5198730, 6065185, 7278222, 10397460, 12130370, 14556444, 18195555, 24260740, 36391110, 72782220]

約数ペア:

[(1, 72782220), (2, 36391110), (3, 24260740), (4, 18195555), (5, 14556444), (6, 12130370), (7, 10397460), (10, 7278222), (12, 6065185), (14, 5198730), (15, 4852148), (20, 3639111), (21, 3465820), (28, 2599365), (30, 2426074), (35, 2079492), (42, 1732910), (60, 1213037), (70, 1039746), (84, 866455), (105, 693164), (140, 519873), (210, 346582), (420, 173291)]