18955140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5179}}^1$

素因数の和:5252

約数の個数: 48

約数和(自身を含む): 53954880

約数和(自身を除く): 34999740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5179, 10358, 15537, 20716, 25895, 31074, 51790, 62148, 77685, 103580, 155370, 310740, 315919, 631838, 947757, 1263676, 1579595, 1895514, 3159190, 3791028, 4738785, 6318380, 9477570, 18955140]

約数ペア:

[(1, 18955140), (2, 9477570), (3, 6318380), (4, 4738785), (5, 3791028), (6, 3159190), (10, 1895514), (12, 1579595), (15, 1263676), (20, 947757), (30, 631838), (60, 315919), (61, 310740), (122, 155370), (183, 103580), (244, 77685), (305, 62148), (366, 51790), (610, 31074), (732, 25895), (915, 20716), (1220, 15537), (1830, 10358), (3660, 5179)]