2781189320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{26347}}^1$

素因数の和:26407

約数の個数: 128

約数和(自身を含む): 7967635200

約数和(自身を除く): 5186445880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 29, 35, 40, 52, 56, 58, 65, 70, 91, 104, 116, 130, 140, 145, 182, 203, 232, 260, 280, 290, 364, 377, 406, 455, 520, 580, 728, 754, 812, 910, 1015, 1160, 1508, 1624, 1820, 1885, 2030, 2639, 3016, 3640, 3770, 4060, 5278, 7540, 8120, 10556, 13195, 15080, 21112, 26347, 26390, 52694, 52780, 105388, 105560, 131735, 184429, 210776, 263470, 342511, 368858, 526940, 685022, 737716, 764063, 922145, 1053880, 1370044, 1475432, 1528126, 1712555, 1844290, 2397577, 2740088, 3056252, 3425110, 3688580, 3820315, 4795154, 5348441, 6112504, 6850220, 7377160, 7640630, 9590308, 9932819, 10696882, 11987885, 13700440, 15281260, 19180616, 19865638, 21393764, 23975770, 26742205, 30562520, 39731276, 42787528, 47951540, 49664095, 53484410, 69529733, 79462552, 95903080, 99328190, 106968820, 139059466, 198656380, 213937640, 278118932, 347648665, 397312760, 556237864, 695297330, 1390594660, 2781189320]

約数ペア:

[(1, 2781189320), (2, 1390594660), (4, 695297330), (5, 556237864), (7, 397312760), (8, 347648665), (10, 278118932), (13, 213937640), (14, 198656380), (20, 139059466), (26, 106968820), (28, 99328190), (29, 95903080), (35, 79462552), (40, 69529733), (52, 53484410), (56, 49664095), (58, 47951540), (65, 42787528), (70, 39731276), (91, 30562520), (104, 26742205), (116, 23975770), (130, 21393764), (140, 19865638), (145, 19180616), (182, 15281260), (203, 13700440), (232, 11987885), (260, 10696882), (280, 9932819), (290, 9590308), (364, 7640630), (377, 7377160), (406, 6850220), (455, 6112504), (520, 5348441), (580, 4795154), (728, 3820315), (754, 3688580), (812, 3425110), (910, 3056252), (1015, 2740088), (1160, 2397577), (1508, 1844290), (1624, 1712555), (1820, 1528126), (1885, 1475432), (2030, 1370044), (2639, 1053880), (3016, 922145), (3640, 764063), (3770, 737716), (4060, 685022), (5278, 526940), (7540, 368858), (8120, 342511), (10556, 263470), (13195, 210776), (15080, 184429), (21112, 131735), (26347, 105560), (26390, 105388), (52694, 52780)]