40552980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51991}}^1$

素因数の和:52016

約数の個数: 48

約数和(自身を含む): 122285184

約数和(自身を除く): 81732204

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, 51991, 103982, 155973, 207964, 259955, 311946, 519910, 623892, 675883, 779865, 1039820, 1351766, 1559730, 2027649, 2703532, 3119460, 3379415, 4055298, 6758830, 8110596, 10138245, 13517660, 20276490, 40552980]

約数ペア:

[(1, 40552980), (2, 20276490), (3, 13517660), (4, 10138245), (5, 8110596), (6, 6758830), (10, 4055298), (12, 3379415), (13, 3119460), (15, 2703532), (20, 2027649), (26, 1559730), (30, 1351766), (39, 1039820), (52, 779865), (60, 675883), (65, 623892), (78, 519910), (130, 311946), (156, 259955), (195, 207964), (260, 155973), (390, 103982), (780, 51991)]