19780740

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5233}}^1$

素因数の和:5258

約数の個数: 96

約数和(自身を含む): 70344960

約数和(自身を除く): 50564220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5233, 10466, 15699, 20932, 26165, 31398, 36631, 47097, 52330, 62796, 73262, 78495, 94194, 104660, 109893, 141291, 146524, 156990, 183155, 188388, 219786, 235485, 282582, 313980, 329679, 366310, 439572, 470970, 549465, 565164, 659358, 706455, 732620, 941940, 989037, 1098930, 1318716, 1412910, 1648395, 1978074, 2197860, 2825820, 3296790, 3956148, 4945185, 6593580, 9890370, 19780740]

約数ペア:

[(1, 19780740), (2, 9890370), (3, 6593580), (4, 4945185), (5, 3956148), (6, 3296790), (7, 2825820), (9, 2197860), (10, 1978074), (12, 1648395), (14, 1412910), (15, 1318716), (18, 1098930), (20, 989037), (21, 941940), (27, 732620), (28, 706455), (30, 659358), (35, 565164), (36, 549465), (42, 470970), (45, 439572), (54, 366310), (60, 329679), (63, 313980), (70, 282582), (84, 235485), (90, 219786), (105, 188388), (108, 183155), (126, 156990), (135, 146524), (140, 141291), (180, 109893), (189, 104660), (210, 94194), (252, 78495), (270, 73262), (315, 62796), (378, 52330), (420, 47097), (540, 36631), (630, 31398), (756, 26165), (945, 20932), (1260, 15699), (1890, 10466), (3780, 5233)]