19656780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:144

約数の個数: 192

約数和(自身を含む): 67737600

約数和(自身を除く): 48080820

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 29, 30, 33, 39, 44, 52, 55, 58, 60, 65, 66, 78, 79, 87, 110, 116, 130, 132, 143, 145, 156, 158, 165, 174, 195, 220, 237, 260, 286, 290, 316, 319, 330, 348, 377, 390, 395, 429, 435, 474, 572, 580, 638, 660, 715, 754, 780, 790, 858, 869, 870, 948, 957, 1027, 1131, 1185, 1276, 1430, 1508, 1580, 1595, 1716, 1738, 1740, 1885, 1914, 2054, 2145, 2262, 2291, 2370, 2607, 2860, 3081, 3190, 3476, 3770, 3828, 4108, 4147, 4290, 4345, 4524, 4582, 4740, 4785, 5135, 5214, 5655, 6162, 6380, 6873, 7540, 8294, 8580, 8690, 9164, 9570, 10270, 10428, 11297, 11310, 11455, 12324, 12441, 13035, 13746, 15405, 16588, 17380, 19140, 20540, 20735, 22594, 22620, 22910, 24882, 25201, 26070, 27492, 29783, 30810, 33891, 34365, 41470, 45188, 45820, 49764, 50402, 52140, 56485, 59566, 61620, 62205, 67782, 68730, 75603, 82940, 89349, 100804, 112970, 119132, 124410, 126005, 135564, 137460, 148915, 151206, 169455, 178698, 225940, 248820, 252010, 297830, 302412, 327613, 338910, 357396, 378015, 446745, 504020, 595660, 655226, 677820, 756030, 893490, 982839, 1310452, 1512060, 1638065, 1786980, 1965678, 3276130, 3931356, 4914195, 6552260, 9828390, 19656780]

約数ペア:

[(1, 19656780), (2, 9828390), (3, 6552260), (4, 4914195), (5, 3931356), (6, 3276130), (10, 1965678), (11, 1786980), (12, 1638065), (13, 1512060), (15, 1310452), (20, 982839), (22, 893490), (26, 756030), (29, 677820), (30, 655226), (33, 595660), (39, 504020), (44, 446745), (52, 378015), (55, 357396), (58, 338910), (60, 327613), (65, 302412), (66, 297830), (78, 252010), (79, 248820), (87, 225940), (110, 178698), (116, 169455), (130, 151206), (132, 148915), (143, 137460), (145, 135564), (156, 126005), (158, 124410), (165, 119132), (174, 112970), (195, 100804), (220, 89349), (237, 82940), (260, 75603), (286, 68730), (290, 67782), (316, 62205), (319, 61620), (330, 59566), (348, 56485), (377, 52140), (390, 50402), (395, 49764), (429, 45820), (435, 45188), (474, 41470), (572, 34365), (580, 33891), (638, 30810), (660, 29783), (715, 27492), (754, 26070), (780, 25201), (790, 24882), (858, 22910), (869, 22620), (870, 22594), (948, 20735), (957, 20540), (1027, 19140), (1131, 17380), (1185, 16588), (1276, 15405), (1430, 13746), (1508, 13035), (1580, 12441), (1595, 12324), (1716, 11455), (1738, 11310), (1740, 11297), (1885, 10428), (1914, 10270), (2054, 9570), (2145, 9164), (2262, 8690), (2291, 8580), (2370, 8294), (2607, 7540), (2860, 6873), (3081, 6380), (3190, 6162), (3476, 5655), (3770, 5214), (3828, 5135), (4108, 4785), (4147, 4740), (4290, 4582), (4345, 4524)]