648720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:89

約数の個数: 120

約数和(自身を含む): 2350296

約数和(自身を除く): 1701576

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 53, 60, 68, 72, 80, 85, 90, 102, 106, 120, 136, 144, 153, 159, 170, 180, 204, 212, 240, 255, 265, 272, 306, 318, 340, 360, 408, 424, 477, 510, 530, 612, 636, 680, 720, 765, 795, 816, 848, 901, 954, 1020, 1060, 1224, 1272, 1360, 1530, 1590, 1802, 1908, 2040, 2120, 2385, 2448, 2544, 2703, 3060, 3180, 3604, 3816, 4080, 4240, 4505, 4770, 5406, 6120, 6360, 7208, 7632, 8109, 9010, 9540, 10812, 12240, 12720, 13515, 14416, 16218, 18020, 19080, 21624, 27030, 32436, 36040, 38160, 40545, 43248, 54060, 64872, 72080, 81090, 108120, 129744, 162180, 216240, 324360, 648720]

約数ペア:

[(1, 648720), (2, 324360), (3, 216240), (4, 162180), (5, 129744), (6, 108120), (8, 81090), (9, 72080), (10, 64872), (12, 54060), (15, 43248), (16, 40545), (17, 38160), (18, 36040), (20, 32436), (24, 27030), (30, 21624), (34, 19080), (36, 18020), (40, 16218), (45, 14416), (48, 13515), (51, 12720), (53, 12240), (60, 10812), (68, 9540), (72, 9010), (80, 8109), (85, 7632), (90, 7208), (102, 6360), (106, 6120), (120, 5406), (136, 4770), (144, 4505), (153, 4240), (159, 4080), (170, 3816), (180, 3604), (204, 3180), (212, 3060), (240, 2703), (255, 2544), (265, 2448), (272, 2385), (306, 2120), (318, 2040), (340, 1908), (360, 1802), (408, 1590), (424, 1530), (477, 1360), (510, 1272), (530, 1224), (612, 1060), (636, 1020), (680, 954), (720, 901), (765, 848), (795, 816)]