28465384920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{187223}}^1$

素因数の和:187425

約数の個数: 128

約数和(自身を含む): 98135331840

約数和(自身を除く): 69669946920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 181, 210, 280, 362, 420, 543, 724, 840, 905, 1086, 1267, 1448, 1810, 2172, 2534, 2715, 3620, 3801, 4344, 5068, 5430, 6335, 7240, 7602, 10136, 10860, 12670, 15204, 19005, 21720, 25340, 30408, 38010, 50680, 76020, 152040, 187223, 374446, 561669, 748892, 936115, 1123338, 1310561, 1497784, 1872230, 2246676, 2621122, 2808345, 3744460, 3931683, 4493352, 5242244, 5616690, 6552805, 7488920, 7863366, 10484488, 11233380, 13105610, 15726732, 19658415, 22466760, 26211220, 31453464, 33887363, 39316830, 52422440, 67774726, 78633660, 101662089, 135549452, 157267320, 169436815, 203324178, 237211541, 271098904, 338873630, 406648356, 474423082, 508310445, 677747260, 711634623, 813296712, 948846164, 1016620890, 1186057705, 1355494520, 1423269246, 1897692328, 2033241780, 2372115410, 2846538492, 3558173115, 4066483560, 4744230820, 5693076984, 7116346230, 9488461640, 14232692460, 28465384920]

約数ペア:

[(1, 28465384920), (2, 14232692460), (3, 9488461640), (4, 7116346230), (5, 5693076984), (6, 4744230820), (7, 4066483560), (8, 3558173115), (10, 2846538492), (12, 2372115410), (14, 2033241780), (15, 1897692328), (20, 1423269246), (21, 1355494520), (24, 1186057705), (28, 1016620890), (30, 948846164), (35, 813296712), (40, 711634623), (42, 677747260), (56, 508310445), (60, 474423082), (70, 406648356), (84, 338873630), (105, 271098904), (120, 237211541), (140, 203324178), (168, 169436815), (181, 157267320), (210, 135549452), (280, 101662089), (362, 78633660), (420, 67774726), (543, 52422440), (724, 39316830), (840, 33887363), (905, 31453464), (1086, 26211220), (1267, 22466760), (1448, 19658415), (1810, 15726732), (2172, 13105610), (2534, 11233380), (2715, 10484488), (3620, 7863366), (3801, 7488920), (4344, 6552805), (5068, 5616690), (5430, 5242244), (6335, 4493352), (7240, 3931683), (7602, 3744460), (10136, 2808345), (10860, 2621122), (12670, 2246676), (15204, 1872230), (19005, 1497784), (21720, 1310561), (25340, 1123338), (30408, 936115), (38010, 748892), (50680, 561669), (76020, 374446), (152040, 187223)]