28337820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{619}}^1$

素因数の和:747

約数の個数: 96

約数和(自身を含む): 91660800

約数和(自身を除く): 63322980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 109, 140, 210, 218, 327, 420, 436, 545, 619, 654, 763, 1090, 1238, 1308, 1526, 1635, 1857, 2180, 2289, 2476, 3052, 3095, 3270, 3714, 3815, 4333, 4578, 6190, 6540, 7428, 7630, 8666, 9156, 9285, 11445, 12380, 12999, 15260, 17332, 18570, 21665, 22890, 25998, 37140, 43330, 45780, 51996, 64995, 67471, 86660, 129990, 134942, 202413, 259980, 269884, 337355, 404826, 472297, 674710, 809652, 944594, 1012065, 1349420, 1416891, 1889188, 2024130, 2361485, 2833782, 4048260, 4722970, 5667564, 7084455, 9445940, 14168910, 28337820]

約数ペア:

[(1, 28337820), (2, 14168910), (3, 9445940), (4, 7084455), (5, 5667564), (6, 4722970), (7, 4048260), (10, 2833782), (12, 2361485), (14, 2024130), (15, 1889188), (20, 1416891), (21, 1349420), (28, 1012065), (30, 944594), (35, 809652), (42, 674710), (60, 472297), (70, 404826), (84, 337355), (105, 269884), (109, 259980), (140, 202413), (210, 134942), (218, 129990), (327, 86660), (420, 67471), (436, 64995), (545, 51996), (619, 45780), (654, 43330), (763, 37140), (1090, 25998), (1238, 22890), (1308, 21665), (1526, 18570), (1635, 17332), (1857, 15260), (2180, 12999), (2289, 12380), (2476, 11445), (3052, 9285), (3095, 9156), (3270, 8666), (3714, 7630), (3815, 7428), (4333, 6540), (4578, 6190)]