172903120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{173}}^1$

素因数の和:261

約数の個数: 120

約数和(自身を含む): 449924328

約数和(自身を除く): 277021208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 173, 208, 248, 260, 310, 346, 403, 496, 520, 620, 692, 806, 865, 961, 1040, 1240, 1384, 1612, 1730, 1922, 2015, 2249, 2480, 2768, 3224, 3460, 3844, 4030, 4498, 4805, 5363, 6448, 6920, 7688, 8060, 8996, 9610, 10726, 11245, 12493, 13840, 15376, 16120, 17992, 19220, 21452, 22490, 24986, 26815, 32240, 35984, 38440, 42904, 44980, 49972, 53630, 62465, 69719, 76880, 85808, 89960, 99944, 107260, 124930, 139438, 166253, 179920, 199888, 214520, 249860, 278876, 332506, 348595, 429040, 499720, 557752, 665012, 697190, 831265, 999440, 1115504, 1330024, 1394380, 1662530, 2161289, 2660048, 2788760, 3325060, 4322578, 5577520, 6650120, 8645156, 10806445, 13300240, 17290312, 21612890, 34580624, 43225780, 86451560, 172903120]

約数ペア:

[(1, 172903120), (2, 86451560), (4, 43225780), (5, 34580624), (8, 21612890), (10, 17290312), (13, 13300240), (16, 10806445), (20, 8645156), (26, 6650120), (31, 5577520), (40, 4322578), (52, 3325060), (62, 2788760), (65, 2660048), (80, 2161289), (104, 1662530), (124, 1394380), (130, 1330024), (155, 1115504), (173, 999440), (208, 831265), (248, 697190), (260, 665012), (310, 557752), (346, 499720), (403, 429040), (496, 348595), (520, 332506), (620, 278876), (692, 249860), (806, 214520), (865, 199888), (961, 179920), (1040, 166253), (1240, 139438), (1384, 124930), (1612, 107260), (1730, 99944), (1922, 89960), (2015, 85808), (2249, 76880), (2480, 69719), (2768, 62465), (3224, 53630), (3460, 49972), (3844, 44980), (4030, 42904), (4498, 38440), (4805, 35984), (5363, 32240), (6448, 26815), (6920, 24986), (7688, 22490), (8060, 21452), (8996, 19220), (9610, 17992), (10726, 16120), (11245, 15376), (12493, 13840)]