7828740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 144

約数和(自身を含む): 25998336

約数和(自身を除く): 18169596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 31, 36, 45, 46, 60, 61, 62, 69, 90, 92, 93, 115, 122, 124, 138, 155, 180, 183, 186, 207, 230, 244, 276, 279, 305, 310, 345, 366, 372, 414, 460, 465, 549, 558, 610, 620, 690, 713, 732, 828, 915, 930, 1035, 1098, 1116, 1220, 1380, 1395, 1403, 1426, 1830, 1860, 1891, 2070, 2139, 2196, 2745, 2790, 2806, 2852, 3565, 3660, 3782, 4140, 4209, 4278, 5490, 5580, 5612, 5673, 6417, 7015, 7130, 7564, 8418, 8556, 9455, 10695, 10980, 11346, 12627, 12834, 14030, 14260, 16836, 17019, 18910, 21045, 21390, 22692, 25254, 25668, 28060, 28365, 32085, 34038, 37820, 42090, 42780, 43493, 50508, 56730, 63135, 64170, 68076, 84180, 85095, 86986, 113460, 126270, 128340, 130479, 170190, 173972, 217465, 252540, 260958, 340380, 391437, 434930, 521916, 652395, 782874, 869860, 1304790, 1565748, 1957185, 2609580, 3914370, 7828740]

約数ペア:

[(1, 7828740), (2, 3914370), (3, 2609580), (4, 1957185), (5, 1565748), (6, 1304790), (9, 869860), (10, 782874), (12, 652395), (15, 521916), (18, 434930), (20, 391437), (23, 340380), (30, 260958), (31, 252540), (36, 217465), (45, 173972), (46, 170190), (60, 130479), (61, 128340), (62, 126270), (69, 113460), (90, 86986), (92, 85095), (93, 84180), (115, 68076), (122, 64170), (124, 63135), (138, 56730), (155, 50508), (180, 43493), (183, 42780), (186, 42090), (207, 37820), (230, 34038), (244, 32085), (276, 28365), (279, 28060), (305, 25668), (310, 25254), (345, 22692), (366, 21390), (372, 21045), (414, 18910), (460, 17019), (465, 16836), (549, 14260), (558, 14030), (610, 12834), (620, 12627), (690, 11346), (713, 10980), (732, 10695), (828, 9455), (915, 8556), (930, 8418), (1035, 7564), (1098, 7130), (1116, 7015), (1220, 6417), (1380, 5673), (1395, 5612), (1403, 5580), (1426, 5490), (1830, 4278), (1860, 4209), (1891, 4140), (2070, 3782), (2139, 3660), (2196, 3565), (2745, 2852), (2790, 2806)]