79721720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8069}}^1$

素因数の和:8112

約数の個数: 64

約数和(自身を含む): 203364000

約数和(自身を除く): 123642280

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 8069, 9880, 16138, 32276, 40345, 64552, 80690, 104897, 153311, 161380, 209794, 306622, 322760, 419588, 524485, 613244, 766555, 839176, 1048970, 1226488, 1533110, 1993043, 2097940, 3066220, 3986086, 4195880, 6132440, 7972172, 9965215, 15944344, 19930430, 39860860, 79721720]

約数ペア:

[(1, 79721720), (2, 39860860), (4, 19930430), (5, 15944344), (8, 9965215), (10, 7972172), (13, 6132440), (19, 4195880), (20, 3986086), (26, 3066220), (38, 2097940), (40, 1993043), (52, 1533110), (65, 1226488), (76, 1048970), (95, 839176), (104, 766555), (130, 613244), (152, 524485), (190, 419588), (247, 322760), (260, 306622), (380, 209794), (494, 161380), (520, 153311), (760, 104897), (988, 80690), (1235, 64552), (1976, 40345), (2470, 32276), (4940, 16138), (8069, 9880)]