15888720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{277}}^1$

素因数の和:532

約数の個数: 80

約数和(自身を含む): 49639680

約数和(自身を除く): 33750960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 239, 240, 277, 478, 554, 717, 831, 956, 1108, 1195, 1385, 1434, 1662, 1912, 2216, 2390, 2770, 2868, 3324, 3585, 3824, 4155, 4432, 4780, 5540, 5736, 6648, 7170, 8310, 9560, 11080, 11472, 13296, 14340, 16620, 19120, 22160, 28680, 33240, 57360, 66203, 66480, 132406, 198609, 264812, 331015, 397218, 529624, 662030, 794436, 993045, 1059248, 1324060, 1588872, 1986090, 2648120, 3177744, 3972180, 5296240, 7944360, 15888720]

約数ペア:

[(1, 15888720), (2, 7944360), (3, 5296240), (4, 3972180), (5, 3177744), (6, 2648120), (8, 1986090), (10, 1588872), (12, 1324060), (15, 1059248), (16, 993045), (20, 794436), (24, 662030), (30, 529624), (40, 397218), (48, 331015), (60, 264812), (80, 198609), (120, 132406), (239, 66480), (240, 66203), (277, 57360), (478, 33240), (554, 28680), (717, 22160), (831, 19120), (956, 16620), (1108, 14340), (1195, 13296), (1385, 11472), (1434, 11080), (1662, 9560), (1912, 8310), (2216, 7170), (2390, 6648), (2770, 5736), (2868, 5540), (3324, 4780), (3585, 4432), (3824, 4155)]