28857660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36997}}^1$

素因数の和:37022

約数の個数: 48

約数和(自身を含む): 87019296

約数和(自身を除く): 58161636

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, 36997, 73994, 110991, 147988, 184985, 221982, 369970, 443964, 480961, 554955, 739940, 961922, 1109910, 1442883, 1923844, 2219820, 2404805, 2885766, 4809610, 5771532, 7214415, 9619220, 14428830, 28857660]

約数ペア:

[(1, 28857660), (2, 14428830), (3, 9619220), (4, 7214415), (5, 5771532), (6, 4809610), (10, 2885766), (12, 2404805), (13, 2219820), (15, 1923844), (20, 1442883), (26, 1109910), (30, 961922), (39, 739940), (52, 554955), (60, 480961), (65, 443964), (78, 369970), (130, 221982), (156, 184985), (195, 147988), (260, 110991), (390, 73994), (780, 36997)]