18919020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 55883520

約数和(自身を除く): 36964500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 83, 87, 116, 131, 145, 166, 174, 249, 262, 290, 332, 348, 393, 415, 435, 498, 524, 580, 655, 786, 830, 870, 996, 1245, 1310, 1572, 1660, 1740, 1965, 2407, 2490, 2620, 3799, 3930, 4814, 4980, 7221, 7598, 7860, 9628, 10873, 11397, 12035, 14442, 15196, 18995, 21746, 22794, 24070, 28884, 32619, 36105, 37990, 43492, 45588, 48140, 54365, 56985, 65238, 72210, 75980, 108730, 113970, 130476, 144420, 163095, 217460, 227940, 315317, 326190, 630634, 652380, 945951, 1261268, 1576585, 1891902, 3153170, 3783804, 4729755, 6306340, 9459510, 18919020]

約数ペア:

[(1, 18919020), (2, 9459510), (3, 6306340), (4, 4729755), (5, 3783804), (6, 3153170), (10, 1891902), (12, 1576585), (15, 1261268), (20, 945951), (29, 652380), (30, 630634), (58, 326190), (60, 315317), (83, 227940), (87, 217460), (116, 163095), (131, 144420), (145, 130476), (166, 113970), (174, 108730), (249, 75980), (262, 72210), (290, 65238), (332, 56985), (348, 54365), (393, 48140), (415, 45588), (435, 43492), (498, 37990), (524, 36105), (580, 32619), (655, 28884), (786, 24070), (830, 22794), (870, 21746), (996, 18995), (1245, 15196), (1310, 14442), (1572, 12035), (1660, 11397), (1740, 10873), (1965, 9628), (2407, 7860), (2490, 7598), (2620, 7221), (3799, 4980), (3930, 4814)]