28663180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15749}}^1$

素因数の和:15778

約数の個数: 48

約数和(自身を含む): 74088000

約数和(自身を除く): 45424820

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15749, 31498, 62996, 78745, 110243, 157490, 204737, 220486, 314980, 409474, 440972, 551215, 818948, 1023685, 1102430, 1433159, 2047370, 2204860, 2866318, 4094740, 5732636, 7165795, 14331590, 28663180]

約数ペア:

[(1, 28663180), (2, 14331590), (4, 7165795), (5, 5732636), (7, 4094740), (10, 2866318), (13, 2204860), (14, 2047370), (20, 1433159), (26, 1102430), (28, 1023685), (35, 818948), (52, 551215), (65, 440972), (70, 409474), (91, 314980), (130, 220486), (140, 204737), (182, 157490), (260, 110243), (364, 78745), (455, 62996), (910, 31498), (1820, 15749)]