20153520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1217}}^1$

素因数の和:1259

約数の個数: 120

約数和(自身を含む): 70682976

約数和(自身を除く): 50529456

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1217, 1380, 1656, 1840, 2070, 2434, 2760, 3312, 3651, 4140, 4868, 5520, 6085, 7302, 8280, 9736, 10953, 12170, 14604, 16560, 18255, 19472, 21906, 24340, 27991, 29208, 36510, 43812, 48680, 54765, 55982, 58416, 73020, 83973, 87624, 97360, 109530, 111964, 139955, 146040, 167946, 175248, 219060, 223928, 251919, 279910, 292080, 335892, 419865, 438120, 447856, 503838, 559820, 671784, 839730, 876240, 1007676, 1119640, 1259595, 1343568, 1679460, 2015352, 2239280, 2519190, 3358920, 4030704, 5038380, 6717840, 10076760, 20153520]

約数ペア:

[(1, 20153520), (2, 10076760), (3, 6717840), (4, 5038380), (5, 4030704), (6, 3358920), (8, 2519190), (9, 2239280), (10, 2015352), (12, 1679460), (15, 1343568), (16, 1259595), (18, 1119640), (20, 1007676), (23, 876240), (24, 839730), (30, 671784), (36, 559820), (40, 503838), (45, 447856), (46, 438120), (48, 419865), (60, 335892), (69, 292080), (72, 279910), (80, 251919), (90, 223928), (92, 219060), (115, 175248), (120, 167946), (138, 146040), (144, 139955), (180, 111964), (184, 109530), (207, 97360), (230, 87624), (240, 83973), (276, 73020), (345, 58416), (360, 55982), (368, 54765), (414, 48680), (460, 43812), (552, 36510), (690, 29208), (720, 27991), (828, 24340), (920, 21906), (1035, 19472), (1104, 18255), (1217, 16560), (1380, 14604), (1656, 12170), (1840, 10953), (2070, 9736), (2434, 8280), (2760, 7302), (3312, 6085), (3651, 5520), (4140, 4868)]