19756620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8443}}^1$

素因数の和:8471

約数の個数: 72

約数和(自身を含む): 64545936

約数和(自身を除く): 44789316

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, 8443, 16886, 25329, 33772, 42215, 50658, 75987, 84430, 101316, 109759, 126645, 151974, 168860, 219518, 253290, 303948, 329277, 379935, 439036, 506580, 548795, 658554, 759870, 987831, 1097590, 1317108, 1519740, 1646385, 1975662, 2195180, 3292770, 3951324, 4939155, 6585540, 9878310, 19756620]

約数ペア:

[(1, 19756620), (2, 9878310), (3, 6585540), (4, 4939155), (5, 3951324), (6, 3292770), (9, 2195180), (10, 1975662), (12, 1646385), (13, 1519740), (15, 1317108), (18, 1097590), (20, 987831), (26, 759870), (30, 658554), (36, 548795), (39, 506580), (45, 439036), (52, 379935), (60, 329277), (65, 303948), (78, 253290), (90, 219518), (117, 168860), (130, 151974), (156, 126645), (180, 109759), (195, 101316), (234, 84430), (260, 75987), (390, 50658), (468, 42215), (585, 33772), (780, 25329), (1170, 16886), (2340, 8443)]