81909440

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:430

約数の個数: 112

約数和(自身を含む): 210677760

約数和(自身を除く): 128768320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 155, 160, 184, 230, 248, 310, 320, 359, 368, 460, 496, 620, 713, 718, 736, 920, 992, 1240, 1426, 1436, 1472, 1795, 1840, 1984, 2480, 2852, 2872, 3565, 3590, 3680, 4960, 5704, 5744, 7130, 7180, 7360, 8257, 9920, 11129, 11408, 11488, 14260, 14360, 16514, 22258, 22816, 22976, 28520, 28720, 33028, 41285, 44516, 45632, 55645, 57040, 57440, 66056, 82570, 89032, 111290, 114080, 114880, 132112, 165140, 178064, 222580, 228160, 255967, 264224, 330280, 356128, 445160, 511934, 528448, 660560, 712256, 890320, 1023868, 1279835, 1321120, 1780640, 2047736, 2559670, 2642240, 3561280, 4095472, 5119340, 8190944, 10238680, 16381888, 20477360, 40954720, 81909440]

約数ペア:

[(1, 81909440), (2, 40954720), (4, 20477360), (5, 16381888), (8, 10238680), (10, 8190944), (16, 5119340), (20, 4095472), (23, 3561280), (31, 2642240), (32, 2559670), (40, 2047736), (46, 1780640), (62, 1321120), (64, 1279835), (80, 1023868), (92, 890320), (115, 712256), (124, 660560), (155, 528448), (160, 511934), (184, 445160), (230, 356128), (248, 330280), (310, 264224), (320, 255967), (359, 228160), (368, 222580), (460, 178064), (496, 165140), (620, 132112), (713, 114880), (718, 114080), (736, 111290), (920, 89032), (992, 82570), (1240, 66056), (1426, 57440), (1436, 57040), (1472, 55645), (1795, 45632), (1840, 44516), (1984, 41285), (2480, 33028), (2852, 28720), (2872, 28520), (3565, 22976), (3590, 22816), (3680, 22258), (4960, 16514), (5704, 14360), (5744, 14260), (7130, 11488), (7180, 11408), (7360, 11129), (8257, 9920)]