278976240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20393}}^1$

素因数の和:20431

約数の個数: 120

約数和(自身を含む): 986253840

約数和(自身を除く): 707277600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2280, 2736, 3420, 4560, 6840, 13680, 20393, 40786, 61179, 81572, 101965, 122358, 163144, 183537, 203930, 244716, 305895, 326288, 367074, 387467, 407860, 489432, 611790, 734148, 774934, 815720, 917685, 978864, 1162401, 1223580, 1468296, 1549868, 1631440, 1835370, 1937335, 2324802, 2447160, 2936592, 3099736, 3487203, 3670740, 3874670, 4649604, 4894320, 5812005, 6199472, 6974406, 7341480, 7749340, 9299208, 11624010, 13948812, 14682960, 15498680, 17436015, 18598416, 23248020, 27897624, 30997360, 34872030, 46496040, 55795248, 69744060, 92992080, 139488120, 278976240]

約数ペア:

[(1, 278976240), (2, 139488120), (3, 92992080), (4, 69744060), (5, 55795248), (6, 46496040), (8, 34872030), (9, 30997360), (10, 27897624), (12, 23248020), (15, 18598416), (16, 17436015), (18, 15498680), (19, 14682960), (20, 13948812), (24, 11624010), (30, 9299208), (36, 7749340), (38, 7341480), (40, 6974406), (45, 6199472), (48, 5812005), (57, 4894320), (60, 4649604), (72, 3874670), (76, 3670740), (80, 3487203), (90, 3099736), (95, 2936592), (114, 2447160), (120, 2324802), (144, 1937335), (152, 1835370), (171, 1631440), (180, 1549868), (190, 1468296), (228, 1223580), (240, 1162401), (285, 978864), (304, 917685), (342, 815720), (360, 774934), (380, 734148), (456, 611790), (570, 489432), (684, 407860), (720, 387467), (760, 367074), (855, 326288), (912, 305895), (1140, 244716), (1368, 203930), (1520, 183537), (1710, 163144), (2280, 122358), (2736, 101965), (3420, 81572), (4560, 61179), (6840, 40786), (13680, 20393)]