205628580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{857}}^1$

素因数の和:946

約数の個数: 144

約数和(自身を含む): 659602944

約数和(自身を除く): 453974364

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 43, 45, 60, 62, 86, 90, 93, 124, 129, 155, 172, 180, 186, 215, 258, 279, 310, 372, 387, 430, 465, 516, 558, 620, 645, 774, 857, 860, 930, 1116, 1290, 1333, 1395, 1548, 1714, 1860, 1935, 2571, 2580, 2666, 2790, 3428, 3870, 3999, 4285, 5142, 5332, 5580, 6665, 7713, 7740, 7998, 8570, 10284, 11997, 12855, 13330, 15426, 15996, 17140, 19995, 23994, 25710, 26567, 26660, 30852, 36851, 38565, 39990, 47988, 51420, 53134, 59985, 73702, 77130, 79701, 79980, 106268, 110553, 119970, 132835, 147404, 154260, 159402, 184255, 221106, 239103, 239940, 265670, 318804, 331659, 368510, 398505, 442212, 478206, 531340, 552765, 663318, 737020, 797010, 956412, 1105530, 1142381, 1195515, 1326636, 1594020, 1658295, 2211060, 2284762, 2391030, 3316590, 3427143, 4569524, 4782060, 5711905, 6633180, 6854286, 10281429, 11423810, 13708572, 17135715, 20562858, 22847620, 34271430, 41125716, 51407145, 68542860, 102814290, 205628580]

約数ペア:

[(1, 205628580), (2, 102814290), (3, 68542860), (4, 51407145), (5, 41125716), (6, 34271430), (9, 22847620), (10, 20562858), (12, 17135715), (15, 13708572), (18, 11423810), (20, 10281429), (30, 6854286), (31, 6633180), (36, 5711905), (43, 4782060), (45, 4569524), (60, 3427143), (62, 3316590), (86, 2391030), (90, 2284762), (93, 2211060), (124, 1658295), (129, 1594020), (155, 1326636), (172, 1195515), (180, 1142381), (186, 1105530), (215, 956412), (258, 797010), (279, 737020), (310, 663318), (372, 552765), (387, 531340), (430, 478206), (465, 442212), (516, 398505), (558, 368510), (620, 331659), (645, 318804), (774, 265670), (857, 239940), (860, 239103), (930, 221106), (1116, 184255), (1290, 159402), (1333, 154260), (1395, 147404), (1548, 132835), (1714, 119970), (1860, 110553), (1935, 106268), (2571, 79980), (2580, 79701), (2666, 77130), (2790, 73702), (3428, 59985), (3870, 53134), (3999, 51420), (4285, 47988), (5142, 39990), (5332, 38565), (5580, 36851), (6665, 30852), (7713, 26660), (7740, 26567), (7998, 25710), (8570, 23994), (10284, 19995), (11997, 17140), (12855, 15996), (13330, 15426)]