636627780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{421}}^1$

素因数の和:738

約数の個数: 144

約数和(自身を含む): 2005506048

約数和(自身を除く): 1368878268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 271, 279, 310, 372, 421, 465, 542, 558, 620, 813, 842, 930, 1084, 1116, 1263, 1355, 1395, 1626, 1684, 1860, 2105, 2439, 2526, 2710, 2790, 3252, 3789, 4065, 4210, 4878, 5052, 5420, 5580, 6315, 7578, 8130, 8401, 8420, 9756, 12195, 12630, 13051, 15156, 16260, 16802, 18945, 24390, 25203, 25260, 26102, 33604, 37890, 39153, 42005, 48780, 50406, 52204, 65255, 75609, 75780, 78306, 84010, 100812, 114091, 117459, 126015, 130510, 151218, 156612, 168020, 195765, 228182, 234918, 252030, 261020, 302436, 342273, 378045, 391530, 456364, 469836, 504060, 570455, 587295, 684546, 756090, 783060, 1026819, 1140910, 1174590, 1369092, 1512180, 1711365, 2053638, 2281820, 2349180, 3422730, 3536821, 4107276, 5134095, 6845460, 7073642, 10268190, 10610463, 14147284, 17684105, 20536380, 21220926, 31831389, 35368210, 42441852, 53052315, 63662778, 70736420, 106104630, 127325556, 159156945, 212209260, 318313890, 636627780]

約数ペア:

[(1, 636627780), (2, 318313890), (3, 212209260), (4, 159156945), (5, 127325556), (6, 106104630), (9, 70736420), (10, 63662778), (12, 53052315), (15, 42441852), (18, 35368210), (20, 31831389), (30, 21220926), (31, 20536380), (36, 17684105), (45, 14147284), (60, 10610463), (62, 10268190), (90, 7073642), (93, 6845460), (124, 5134095), (155, 4107276), (180, 3536821), (186, 3422730), (271, 2349180), (279, 2281820), (310, 2053638), (372, 1711365), (421, 1512180), (465, 1369092), (542, 1174590), (558, 1140910), (620, 1026819), (813, 783060), (842, 756090), (930, 684546), (1084, 587295), (1116, 570455), (1263, 504060), (1355, 469836), (1395, 456364), (1626, 391530), (1684, 378045), (1860, 342273), (2105, 302436), (2439, 261020), (2526, 252030), (2710, 234918), (2790, 228182), (3252, 195765), (3789, 168020), (4065, 156612), (4210, 151218), (4878, 130510), (5052, 126015), (5420, 117459), (5580, 114091), (6315, 100812), (7578, 84010), (8130, 78306), (8401, 75780), (8420, 75609), (9756, 65255), (12195, 52204), (12630, 50406), (13051, 48780), (15156, 42005), (16260, 39153), (16802, 37890), (18945, 33604), (24390, 26102), (25203, 25260)]