31995720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:156

約数の個数: 192

約数和(自身を含む): 111421440

約数和(自身を除く): 79425720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 47, 60, 61, 62, 72, 90, 93, 94, 120, 122, 124, 141, 155, 180, 183, 186, 188, 235, 244, 248, 279, 282, 305, 310, 360, 366, 372, 376, 423, 465, 470, 488, 549, 558, 564, 610, 620, 705, 732, 744, 846, 915, 930, 940, 1098, 1116, 1128, 1220, 1240, 1395, 1410, 1457, 1464, 1692, 1830, 1860, 1880, 1891, 2115, 2196, 2232, 2440, 2745, 2790, 2820, 2867, 2914, 3384, 3660, 3720, 3782, 4230, 4371, 4392, 5490, 5580, 5640, 5673, 5734, 5828, 7285, 7320, 7564, 8460, 8601, 8742, 9455, 10980, 11160, 11346, 11468, 11656, 13113, 14335, 14570, 15128, 16920, 17019, 17202, 17484, 18910, 21855, 21960, 22692, 22936, 25803, 26226, 28365, 28670, 29140, 34038, 34404, 34968, 37820, 43005, 43710, 45384, 51606, 52452, 56730, 57340, 58280, 65565, 68076, 68808, 75640, 85095, 86010, 87420, 88877, 103212, 104904, 113460, 114680, 129015, 131130, 136152, 170190, 172020, 174840, 177754, 206424, 226920, 258030, 262260, 266631, 340380, 344040, 355508, 444385, 516060, 524520, 533262, 680760, 711016, 799893, 888770, 1032120, 1066524, 1333155, 1599786, 1777540, 2133048, 2666310, 3199572, 3555080, 3999465, 5332620, 6399144, 7998930, 10665240, 15997860, 31995720]

約数ペア:

[(1, 31995720), (2, 15997860), (3, 10665240), (4, 7998930), (5, 6399144), (6, 5332620), (8, 3999465), (9, 3555080), (10, 3199572), (12, 2666310), (15, 2133048), (18, 1777540), (20, 1599786), (24, 1333155), (30, 1066524), (31, 1032120), (36, 888770), (40, 799893), (45, 711016), (47, 680760), (60, 533262), (61, 524520), (62, 516060), (72, 444385), (90, 355508), (93, 344040), (94, 340380), (120, 266631), (122, 262260), (124, 258030), (141, 226920), (155, 206424), (180, 177754), (183, 174840), (186, 172020), (188, 170190), (235, 136152), (244, 131130), (248, 129015), (279, 114680), (282, 113460), (305, 104904), (310, 103212), (360, 88877), (366, 87420), (372, 86010), (376, 85095), (423, 75640), (465, 68808), (470, 68076), (488, 65565), (549, 58280), (558, 57340), (564, 56730), (610, 52452), (620, 51606), (705, 45384), (732, 43710), (744, 43005), (846, 37820), (915, 34968), (930, 34404), (940, 34038), (1098, 29140), (1116, 28670), (1128, 28365), (1220, 26226), (1240, 25803), (1395, 22936), (1410, 22692), (1457, 21960), (1464, 21855), (1692, 18910), (1830, 17484), (1860, 17202), (1880, 17019), (1891, 16920), (2115, 15128), (2196, 14570), (2232, 14335), (2440, 13113), (2745, 11656), (2790, 11468), (2820, 11346), (2867, 11160), (2914, 10980), (3384, 9455), (3660, 8742), (3720, 8601), (3782, 8460), (4230, 7564), (4371, 7320), (4392, 7285), (5490, 5828), (5580, 5734), (5640, 5673)]