31054920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1171}}^1$

素因数の和:1215

約数の個数: 128

約数和(自身を含む): 106323840

約数和(自身を除く): 75268920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 39, 40, 51, 52, 60, 65, 68, 78, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 221, 255, 260, 312, 340, 390, 408, 442, 510, 520, 663, 680, 780, 884, 1020, 1105, 1171, 1326, 1560, 1768, 2040, 2210, 2342, 2652, 3315, 3513, 4420, 4684, 5304, 5855, 6630, 7026, 8840, 9368, 11710, 13260, 14052, 15223, 17565, 19907, 23420, 26520, 28104, 30446, 35130, 39814, 45669, 46840, 59721, 60892, 70260, 76115, 79628, 91338, 99535, 119442, 121784, 140520, 152230, 159256, 182676, 199070, 228345, 238884, 258791, 298605, 304460, 365352, 398140, 456690, 477768, 517582, 597210, 608920, 776373, 796280, 913380, 1035164, 1194420, 1293955, 1552746, 1826760, 2070328, 2388840, 2587910, 3105492, 3881865, 5175820, 6210984, 7763730, 10351640, 15527460, 31054920]

約数ペア:

[(1, 31054920), (2, 15527460), (3, 10351640), (4, 7763730), (5, 6210984), (6, 5175820), (8, 3881865), (10, 3105492), (12, 2587910), (13, 2388840), (15, 2070328), (17, 1826760), (20, 1552746), (24, 1293955), (26, 1194420), (30, 1035164), (34, 913380), (39, 796280), (40, 776373), (51, 608920), (52, 597210), (60, 517582), (65, 477768), (68, 456690), (78, 398140), (85, 365352), (102, 304460), (104, 298605), (120, 258791), (130, 238884), (136, 228345), (156, 199070), (170, 182676), (195, 159256), (204, 152230), (221, 140520), (255, 121784), (260, 119442), (312, 99535), (340, 91338), (390, 79628), (408, 76115), (442, 70260), (510, 60892), (520, 59721), (663, 46840), (680, 45669), (780, 39814), (884, 35130), (1020, 30446), (1105, 28104), (1171, 26520), (1326, 23420), (1560, 19907), (1768, 17565), (2040, 15223), (2210, 14052), (2342, 13260), (2652, 11710), (3315, 9368), (3513, 8840), (4420, 7026), (4684, 6630), (5304, 5855)]