20408220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5399}}^1$

素因数の和:5424

約数の個数: 96

約数和(自身を含む): 72576000

約数和(自身を除く): 52167780

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, 5399, 10798, 16197, 21596, 26995, 32394, 37793, 48591, 53990, 64788, 75586, 80985, 97182, 107980, 113379, 145773, 151172, 161970, 188965, 194364, 226758, 242955, 291546, 323940, 340137, 377930, 453516, 485910, 566895, 583092, 680274, 728865, 755860, 971820, 1020411, 1133790, 1360548, 1457730, 1700685, 2040822, 2267580, 2915460, 3401370, 4081644, 5102055, 6802740, 10204110, 20408220]

約数ペア:

[(1, 20408220), (2, 10204110), (3, 6802740), (4, 5102055), (5, 4081644), (6, 3401370), (7, 2915460), (9, 2267580), (10, 2040822), (12, 1700685), (14, 1457730), (15, 1360548), (18, 1133790), (20, 1020411), (21, 971820), (27, 755860), (28, 728865), (30, 680274), (35, 583092), (36, 566895), (42, 485910), (45, 453516), (54, 377930), (60, 340137), (63, 323940), (70, 291546), (84, 242955), (90, 226758), (105, 194364), (108, 188965), (126, 161970), (135, 151172), (140, 145773), (180, 113379), (189, 107980), (210, 97182), (252, 80985), (270, 75586), (315, 64788), (378, 53990), (420, 48591), (540, 37793), (630, 32394), (756, 26995), (945, 21596), (1260, 16197), (1890, 10798), (3780, 5399)]