661290960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{250489}}^1$

素因数の和:250516

約数の個数: 80

約数和(自身を含む): 2236374720

約数和(自身を除く): 1575083760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 250489, 500978, 751467, 1001956, 1252445, 1502934, 2003912, 2504890, 2755379, 3005868, 3757335, 4007824, 5009780, 5510758, 6011736, 7514670, 8266137, 10019560, 11021516, 12023472, 13776895, 15029340, 16532274, 20039120, 22043032, 27553790, 30058680, 33064548, 41330685, 44086064, 55107580, 60117360, 66129096, 82661370, 110215160, 132258192, 165322740, 220430320, 330645480, 661290960]

約数ペア:

[(1, 661290960), (2, 330645480), (3, 220430320), (4, 165322740), (5, 132258192), (6, 110215160), (8, 82661370), (10, 66129096), (11, 60117360), (12, 55107580), (15, 44086064), (16, 41330685), (20, 33064548), (22, 30058680), (24, 27553790), (30, 22043032), (33, 20039120), (40, 16532274), (44, 15029340), (48, 13776895), (55, 12023472), (60, 11021516), (66, 10019560), (80, 8266137), (88, 7514670), (110, 6011736), (120, 5510758), (132, 5009780), (165, 4007824), (176, 3757335), (220, 3005868), (240, 2755379), (264, 2504890), (330, 2003912), (440, 1502934), (528, 1252445), (660, 1001956), (880, 751467), (1320, 500978), (2640, 250489)]