721326240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{500921}}^1$

素因数の和:500942

約数の個数: 72

約数和(自身を含む): 2461530708

約数和(自身を除く): 1740204468

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 500921, 1001842, 1502763, 2003684, 2504605, 3005526, 4007368, 4508289, 5009210, 6011052, 7513815, 8014736, 9016578, 10018420, 12022104, 15027630, 16029472, 18033156, 20036840, 22541445, 24044208, 30055260, 36066312, 40073680, 45082890, 48088416, 60110520, 72132624, 80147360, 90165780, 120221040, 144265248, 180331560, 240442080, 360663120, 721326240]

約数ペア:

[(1, 721326240), (2, 360663120), (3, 240442080), (4, 180331560), (5, 144265248), (6, 120221040), (8, 90165780), (9, 80147360), (10, 72132624), (12, 60110520), (15, 48088416), (16, 45082890), (18, 40073680), (20, 36066312), (24, 30055260), (30, 24044208), (32, 22541445), (36, 20036840), (40, 18033156), (45, 16029472), (48, 15027630), (60, 12022104), (72, 10018420), (80, 9016578), (90, 8014736), (96, 7513815), (120, 6011052), (144, 5009210), (160, 4508289), (180, 4007368), (240, 3005526), (288, 2504605), (360, 2003684), (480, 1502763), (720, 1001842), (1440, 500921)]