31243590

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:355

約数の個数: 128

約数和(自身を含む): 97136640

約数和(自身を除く): 65893050

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 61, 63, 70, 90, 105, 122, 126, 135, 183, 189, 210, 270, 271, 305, 315, 366, 378, 427, 542, 549, 610, 630, 813, 854, 915, 945, 1098, 1281, 1355, 1626, 1647, 1830, 1890, 1897, 2135, 2439, 2562, 2710, 2745, 3294, 3794, 3843, 4065, 4270, 4878, 5490, 5691, 6405, 7317, 7686, 8130, 8235, 9485, 11382, 11529, 12195, 12810, 14634, 16470, 16531, 17073, 18970, 19215, 23058, 24390, 28455, 33062, 34146, 36585, 38430, 49593, 51219, 56910, 57645, 73170, 82655, 85365, 99186, 102438, 115290, 115717, 148779, 165310, 170730, 231434, 247965, 256095, 297558, 347151, 446337, 495930, 512190, 578585, 694302, 743895, 892674, 1041453, 1157170, 1487790, 1735755, 2082906, 2231685, 3124359, 3471510, 4463370, 5207265, 6248718, 10414530, 15621795, 31243590]

約数ペア:

[(1, 31243590), (2, 15621795), (3, 10414530), (5, 6248718), (6, 5207265), (7, 4463370), (9, 3471510), (10, 3124359), (14, 2231685), (15, 2082906), (18, 1735755), (21, 1487790), (27, 1157170), (30, 1041453), (35, 892674), (42, 743895), (45, 694302), (54, 578585), (61, 512190), (63, 495930), (70, 446337), (90, 347151), (105, 297558), (122, 256095), (126, 247965), (135, 231434), (183, 170730), (189, 165310), (210, 148779), (270, 115717), (271, 115290), (305, 102438), (315, 99186), (366, 85365), (378, 82655), (427, 73170), (542, 57645), (549, 56910), (610, 51219), (630, 49593), (813, 38430), (854, 36585), (915, 34146), (945, 33062), (1098, 28455), (1281, 24390), (1355, 23058), (1626, 19215), (1647, 18970), (1830, 17073), (1890, 16531), (1897, 16470), (2135, 14634), (2439, 12810), (2562, 12195), (2710, 11529), (2745, 11382), (3294, 9485), (3794, 8235), (3843, 8130), (4065, 7686), (4270, 7317), (4878, 6405), (5490, 5691)]