21700080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{30139}}^1$

素因数の和:30158

約数の個数: 60

約数和(自身を含む): 72878520

約数和(自身を除く): 51178440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 30139, 60278, 90417, 120556, 150695, 180834, 241112, 271251, 301390, 361668, 452085, 482224, 542502, 602780, 723336, 904170, 1085004, 1205560, 1356255, 1446672, 1808340, 2170008, 2411120, 2712510, 3616680, 4340016, 5425020, 7233360, 10850040, 21700080]

約数ペア:

[(1, 21700080), (2, 10850040), (3, 7233360), (4, 5425020), (5, 4340016), (6, 3616680), (8, 2712510), (9, 2411120), (10, 2170008), (12, 1808340), (15, 1446672), (16, 1356255), (18, 1205560), (20, 1085004), (24, 904170), (30, 723336), (36, 602780), (40, 542502), (45, 482224), (48, 452085), (60, 361668), (72, 301390), (80, 271251), (90, 241112), (120, 180834), (144, 150695), (180, 120556), (240, 90417), (360, 60278), (720, 30139)]