42989020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 101606400

約数和(自身を除く): 58617380

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 47, 58, 76, 83, 94, 95, 116, 145, 166, 188, 190, 235, 290, 332, 380, 415, 470, 551, 580, 830, 893, 940, 1102, 1363, 1577, 1660, 1786, 2204, 2407, 2726, 2755, 3154, 3572, 3901, 4465, 4814, 5452, 5510, 6308, 6815, 7802, 7885, 8930, 9628, 11020, 12035, 13630, 15604, 15770, 17860, 19505, 24070, 25897, 27260, 31540, 39010, 45733, 48140, 51794, 74119, 78020, 91466, 103588, 113129, 129485, 148238, 182932, 226258, 228665, 258970, 296476, 370595, 452516, 457330, 517940, 565645, 741190, 914660, 1131290, 1482380, 2149451, 2262580, 4298902, 8597804, 10747255, 21494510, 42989020]

約数ペア:

[(1, 42989020), (2, 21494510), (4, 10747255), (5, 8597804), (10, 4298902), (19, 2262580), (20, 2149451), (29, 1482380), (38, 1131290), (47, 914660), (58, 741190), (76, 565645), (83, 517940), (94, 457330), (95, 452516), (116, 370595), (145, 296476), (166, 258970), (188, 228665), (190, 226258), (235, 182932), (290, 148238), (332, 129485), (380, 113129), (415, 103588), (470, 91466), (551, 78020), (580, 74119), (830, 51794), (893, 48140), (940, 45733), (1102, 39010), (1363, 31540), (1577, 27260), (1660, 25897), (1786, 24070), (2204, 19505), (2407, 17860), (2726, 15770), (2755, 15604), (3154, 13630), (3572, 12035), (3901, 11020), (4465, 9628), (4814, 8930), (5452, 7885), (5510, 7802), (6308, 6815)]