19709820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8423}}^1$

素因数の和:8451

約数の個数: 72

約数和(自身を含む): 64393056

約数和(自身を除く): 44683236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8423, 16846, 25269, 33692, 42115, 50538, 75807, 84230, 101076, 109499, 126345, 151614, 168460, 218998, 252690, 303228, 328497, 379035, 437996, 505380, 547495, 656994, 758070, 985491, 1094990, 1313988, 1516140, 1642485, 1970982, 2189980, 3284970, 3941964, 4927455, 6569940, 9854910, 19709820]

約数ペア:

[(1, 19709820), (2, 9854910), (3, 6569940), (4, 4927455), (5, 3941964), (6, 3284970), (9, 2189980), (10, 1970982), (12, 1642485), (13, 1516140), (15, 1313988), (18, 1094990), (20, 985491), (26, 758070), (30, 656994), (36, 547495), (39, 505380), (45, 437996), (52, 379035), (60, 328497), (65, 303228), (78, 252690), (90, 218998), (117, 168460), (130, 151614), (156, 126345), (180, 109499), (195, 101076), (234, 84230), (260, 75807), (390, 50538), (468, 42115), (585, 33692), (780, 25269), (1170, 16846), (2340, 8423)]