71042140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 172307520

約数和(自身を除く): 101265380

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 73, 76, 95, 130, 146, 190, 197, 247, 260, 292, 365, 380, 394, 494, 730, 788, 949, 985, 988, 1235, 1387, 1460, 1898, 1970, 2470, 2561, 2774, 3743, 3796, 3940, 4745, 4940, 5122, 5548, 6935, 7486, 9490, 10244, 12805, 13870, 14381, 14972, 18031, 18715, 18980, 25610, 27740, 28762, 36062, 37430, 48659, 51220, 57524, 71905, 72124, 74860, 90155, 97318, 143810, 180310, 186953, 194636, 243295, 273239, 287620, 360620, 373906, 486590, 546478, 747812, 934765, 973180, 1092956, 1366195, 1869530, 2732390, 3552107, 3739060, 5464780, 7104214, 14208428, 17760535, 35521070, 71042140]

約数ペア:

[(1, 71042140), (2, 35521070), (4, 17760535), (5, 14208428), (10, 7104214), (13, 5464780), (19, 3739060), (20, 3552107), (26, 2732390), (38, 1869530), (52, 1366195), (65, 1092956), (73, 973180), (76, 934765), (95, 747812), (130, 546478), (146, 486590), (190, 373906), (197, 360620), (247, 287620), (260, 273239), (292, 243295), (365, 194636), (380, 186953), (394, 180310), (494, 143810), (730, 97318), (788, 90155), (949, 74860), (985, 72124), (988, 71905), (1235, 57524), (1387, 51220), (1460, 48659), (1898, 37430), (1970, 36062), (2470, 28762), (2561, 27740), (2774, 25610), (3743, 18980), (3796, 18715), (3940, 18031), (4745, 14972), (4940, 14381), (5122, 13870), (5548, 12805), (6935, 10244), (7486, 9490)]