28185960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:319

約数の個数: 128

約数和(自身を含む): 93519360

約数和(自身を除く): 65333400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 131, 132, 163, 165, 220, 262, 264, 326, 330, 393, 440, 489, 524, 652, 655, 660, 786, 815, 978, 1048, 1304, 1310, 1320, 1441, 1572, 1630, 1793, 1956, 1965, 2445, 2620, 2882, 3144, 3260, 3586, 3912, 3930, 4323, 4890, 5240, 5379, 5764, 6520, 7172, 7205, 7860, 8646, 8965, 9780, 10758, 11528, 14344, 14410, 15720, 17292, 17930, 19560, 21353, 21516, 21615, 26895, 28820, 34584, 35860, 42706, 43032, 43230, 53790, 57640, 64059, 71720, 85412, 86460, 106765, 107580, 128118, 170824, 172920, 213530, 215160, 234883, 256236, 320295, 427060, 469766, 512472, 640590, 704649, 854120, 939532, 1174415, 1281180, 1409298, 1879064, 2348830, 2562360, 2818596, 3523245, 4697660, 5637192, 7046490, 9395320, 14092980, 28185960]

約数ペア:

[(1, 28185960), (2, 14092980), (3, 9395320), (4, 7046490), (5, 5637192), (6, 4697660), (8, 3523245), (10, 2818596), (11, 2562360), (12, 2348830), (15, 1879064), (20, 1409298), (22, 1281180), (24, 1174415), (30, 939532), (33, 854120), (40, 704649), (44, 640590), (55, 512472), (60, 469766), (66, 427060), (88, 320295), (110, 256236), (120, 234883), (131, 215160), (132, 213530), (163, 172920), (165, 170824), (220, 128118), (262, 107580), (264, 106765), (326, 86460), (330, 85412), (393, 71720), (440, 64059), (489, 57640), (524, 53790), (652, 43230), (655, 43032), (660, 42706), (786, 35860), (815, 34584), (978, 28820), (1048, 26895), (1304, 21615), (1310, 21516), (1320, 21353), (1441, 19560), (1572, 17930), (1630, 17292), (1793, 15720), (1956, 14410), (1965, 14344), (2445, 11528), (2620, 10758), (2882, 9780), (3144, 8965), (3260, 8646), (3586, 7860), (3912, 7205), (3930, 7172), (4323, 6520), (4890, 5764), (5240, 5379)]