87128860

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{977}}^1$

素因数の和:1020

約数の個数: 96

約数和(自身を含む): 230025600

約数和(自身を除く): 142896740

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 343, 364, 455, 490, 637, 686, 910, 977, 980, 1274, 1372, 1715, 1820, 1954, 2548, 3185, 3430, 3908, 4459, 4885, 6370, 6839, 6860, 8918, 9770, 12701, 12740, 13678, 17836, 19540, 22295, 25402, 27356, 34195, 44590, 47873, 50804, 63505, 68390, 88907, 89180, 95746, 127010, 136780, 177814, 191492, 239365, 254020, 335111, 355628, 444535, 478730, 622349, 670222, 889070, 957460, 1244698, 1340444, 1675555, 1778140, 2489396, 3111745, 3351110, 4356443, 6223490, 6702220, 8712886, 12446980, 17425772, 21782215, 43564430, 87128860]

約数ペア:

[(1, 87128860), (2, 43564430), (4, 21782215), (5, 17425772), (7, 12446980), (10, 8712886), (13, 6702220), (14, 6223490), (20, 4356443), (26, 3351110), (28, 3111745), (35, 2489396), (49, 1778140), (52, 1675555), (65, 1340444), (70, 1244698), (91, 957460), (98, 889070), (130, 670222), (140, 622349), (182, 478730), (196, 444535), (245, 355628), (260, 335111), (343, 254020), (364, 239365), (455, 191492), (490, 177814), (637, 136780), (686, 127010), (910, 95746), (977, 89180), (980, 88907), (1274, 68390), (1372, 63505), (1715, 50804), (1820, 47873), (1954, 44590), (2548, 34195), (3185, 27356), (3430, 25402), (3908, 22295), (4459, 19540), (4885, 17836), (6370, 13678), (6839, 12740), (6860, 12701), (8918, 9770)]