72254416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:476

約数の個数: 80

約数和(自身を含む): 162489600

約数和(自身を除く): 90235184

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 47, 52, 76, 94, 104, 152, 188, 208, 247, 304, 376, 389, 494, 611, 752, 778, 893, 988, 1222, 1556, 1786, 1976, 2444, 3112, 3572, 3952, 4888, 5057, 6224, 7144, 7391, 9776, 10114, 11609, 14288, 14782, 18283, 20228, 23218, 29564, 36566, 40456, 46436, 59128, 73132, 80912, 92872, 96083, 118256, 146264, 185744, 192166, 237679, 292528, 347377, 384332, 475358, 694754, 768664, 950716, 1389508, 1537328, 1901432, 2779016, 3802864, 4515901, 5558032, 9031802, 18063604, 36127208, 72254416]

約数ペア:

[(1, 72254416), (2, 36127208), (4, 18063604), (8, 9031802), (13, 5558032), (16, 4515901), (19, 3802864), (26, 2779016), (38, 1901432), (47, 1537328), (52, 1389508), (76, 950716), (94, 768664), (104, 694754), (152, 475358), (188, 384332), (208, 347377), (247, 292528), (304, 237679), (376, 192166), (389, 185744), (494, 146264), (611, 118256), (752, 96083), (778, 92872), (893, 80912), (988, 73132), (1222, 59128), (1556, 46436), (1786, 40456), (1976, 36566), (2444, 29564), (3112, 23218), (3572, 20228), (3952, 18283), (4888, 14782), (5057, 14288), (6224, 11609), (7144, 10114), (7391, 9776)]