19840080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6359}}^1$

素因数の和:6388

約数の個数: 80

約数和(自身を含む): 66245760

約数和(自身を除く): 46405680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6359, 12718, 19077, 25436, 31795, 38154, 50872, 63590, 76308, 82667, 95385, 101744, 127180, 152616, 165334, 190770, 248001, 254360, 305232, 330668, 381540, 413335, 496002, 508720, 661336, 763080, 826670, 992004, 1240005, 1322672, 1526160, 1653340, 1984008, 2480010, 3306680, 3968016, 4960020, 6613360, 9920040, 19840080]

約数ペア:

[(1, 19840080), (2, 9920040), (3, 6613360), (4, 4960020), (5, 3968016), (6, 3306680), (8, 2480010), (10, 1984008), (12, 1653340), (13, 1526160), (15, 1322672), (16, 1240005), (20, 992004), (24, 826670), (26, 763080), (30, 661336), (39, 508720), (40, 496002), (48, 413335), (52, 381540), (60, 330668), (65, 305232), (78, 254360), (80, 248001), (104, 190770), (120, 165334), (130, 152616), (156, 127180), (195, 101744), (208, 95385), (240, 82667), (260, 76308), (312, 63590), (390, 50872), (520, 38154), (624, 31795), (780, 25436), (1040, 19077), (1560, 12718), (3120, 6359)]