18940740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3469}}^1$

素因数の和:3501

約数の個数: 96

約数和(自身を含む): 65291520

約数和(自身を除く): 46350780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3469, 5460, 6938, 10407, 13876, 17345, 20814, 24283, 34690, 41628, 45097, 48566, 52035, 69380, 72849, 90194, 97132, 104070, 121415, 135291, 145698, 180388, 208140, 225485, 242830, 270582, 291396, 315679, 364245, 450970, 485660, 541164, 631358, 676455, 728490, 901940, 947037, 1262716, 1352910, 1456980, 1578395, 1894074, 2705820, 3156790, 3788148, 4735185, 6313580, 9470370, 18940740]

約数ペア:

[(1, 18940740), (2, 9470370), (3, 6313580), (4, 4735185), (5, 3788148), (6, 3156790), (7, 2705820), (10, 1894074), (12, 1578395), (13, 1456980), (14, 1352910), (15, 1262716), (20, 947037), (21, 901940), (26, 728490), (28, 676455), (30, 631358), (35, 541164), (39, 485660), (42, 450970), (52, 364245), (60, 315679), (65, 291396), (70, 270582), (78, 242830), (84, 225485), (91, 208140), (105, 180388), (130, 145698), (140, 135291), (156, 121415), (182, 104070), (195, 97132), (210, 90194), (260, 72849), (273, 69380), (364, 52035), (390, 48566), (420, 45097), (455, 41628), (546, 34690), (780, 24283), (910, 20814), (1092, 17345), (1365, 13876), (1820, 10407), (2730, 6938), (3469, 5460)]