31231260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 101687040

約数和(自身を除く): 70455780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 31, 36, 45, 58, 60, 62, 87, 90, 93, 116, 124, 145, 155, 174, 180, 186, 193, 261, 279, 290, 310, 348, 372, 386, 435, 465, 522, 558, 579, 580, 620, 772, 870, 899, 930, 965, 1044, 1116, 1158, 1305, 1395, 1737, 1740, 1798, 1860, 1930, 2316, 2610, 2697, 2790, 2895, 3474, 3596, 3860, 4495, 5220, 5394, 5580, 5597, 5790, 5983, 6948, 8091, 8685, 8990, 10788, 11194, 11580, 11966, 13485, 16182, 16791, 17370, 17949, 17980, 22388, 23932, 26970, 27985, 29915, 32364, 33582, 34740, 35898, 40455, 50373, 53847, 53940, 55970, 59830, 67164, 71796, 80910, 83955, 89745, 100746, 107694, 111940, 119660, 161820, 167910, 173507, 179490, 201492, 215388, 251865, 269235, 335820, 347014, 358980, 503730, 520521, 538470, 694028, 867535, 1007460, 1041042, 1076940, 1561563, 1735070, 2082084, 2602605, 3123126, 3470140, 5205210, 6246252, 7807815, 10410420, 15615630, 31231260]

約数ペア:

[(1, 31231260), (2, 15615630), (3, 10410420), (4, 7807815), (5, 6246252), (6, 5205210), (9, 3470140), (10, 3123126), (12, 2602605), (15, 2082084), (18, 1735070), (20, 1561563), (29, 1076940), (30, 1041042), (31, 1007460), (36, 867535), (45, 694028), (58, 538470), (60, 520521), (62, 503730), (87, 358980), (90, 347014), (93, 335820), (116, 269235), (124, 251865), (145, 215388), (155, 201492), (174, 179490), (180, 173507), (186, 167910), (193, 161820), (261, 119660), (279, 111940), (290, 107694), (310, 100746), (348, 89745), (372, 83955), (386, 80910), (435, 71796), (465, 67164), (522, 59830), (558, 55970), (579, 53940), (580, 53847), (620, 50373), (772, 40455), (870, 35898), (899, 34740), (930, 33582), (965, 32364), (1044, 29915), (1116, 27985), (1158, 26970), (1305, 23932), (1395, 22388), (1737, 17980), (1740, 17949), (1798, 17370), (1860, 16791), (1930, 16182), (2316, 13485), (2610, 11966), (2697, 11580), (2790, 11194), (2895, 10788), (3474, 8990), (3596, 8685), (3860, 8091), (4495, 6948), (5220, 5983), (5394, 5790), (5580, 5597)]