81858400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{463}}^1$

素因数の和:513

約数の個数: 144

約数和(自身を含む): 228360384

約数和(自身を除く): 146501984

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 32, 34, 40, 50, 52, 65, 68, 80, 85, 100, 104, 130, 136, 160, 170, 200, 208, 221, 260, 272, 325, 340, 400, 416, 425, 442, 463, 520, 544, 650, 680, 800, 850, 884, 926, 1040, 1105, 1300, 1360, 1700, 1768, 1852, 2080, 2210, 2315, 2600, 2720, 3400, 3536, 3704, 4420, 4630, 5200, 5525, 6019, 6800, 7072, 7408, 7871, 8840, 9260, 10400, 11050, 11575, 12038, 13600, 14816, 15742, 17680, 18520, 22100, 23150, 24076, 30095, 31484, 35360, 37040, 39355, 44200, 46300, 48152, 60190, 62968, 74080, 78710, 88400, 92600, 96304, 102323, 120380, 125936, 150475, 157420, 176800, 185200, 192608, 196775, 204646, 240760, 251872, 300950, 314840, 370400, 393550, 409292, 481520, 511615, 601900, 629680, 787100, 818584, 963040, 1023230, 1203800, 1259360, 1574200, 1637168, 2046460, 2407600, 2558075, 3148400, 3274336, 4092920, 4815200, 5116150, 6296800, 8185840, 10232300, 16371680, 20464600, 40929200, 81858400]

約数ペア:

[(1, 81858400), (2, 40929200), (4, 20464600), (5, 16371680), (8, 10232300), (10, 8185840), (13, 6296800), (16, 5116150), (17, 4815200), (20, 4092920), (25, 3274336), (26, 3148400), (32, 2558075), (34, 2407600), (40, 2046460), (50, 1637168), (52, 1574200), (65, 1259360), (68, 1203800), (80, 1023230), (85, 963040), (100, 818584), (104, 787100), (130, 629680), (136, 601900), (160, 511615), (170, 481520), (200, 409292), (208, 393550), (221, 370400), (260, 314840), (272, 300950), (325, 251872), (340, 240760), (400, 204646), (416, 196775), (425, 192608), (442, 185200), (463, 176800), (520, 157420), (544, 150475), (650, 125936), (680, 120380), (800, 102323), (850, 96304), (884, 92600), (926, 88400), (1040, 78710), (1105, 74080), (1300, 62968), (1360, 60190), (1700, 48152), (1768, 46300), (1852, 44200), (2080, 39355), (2210, 37040), (2315, 35360), (2600, 31484), (2720, 30095), (3400, 24076), (3536, 23150), (3704, 22100), (4420, 18520), (4630, 17680), (5200, 15742), (5525, 14816), (6019, 13600), (6800, 12038), (7072, 11575), (7408, 11050), (7871, 10400), (8840, 9260)]