18780451760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{2633}}^1$

素因数の和:2971

約数の個数: 160

約数和(自身を含む): 51171581952

約数和(自身を除く): 32391130192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 271, 280, 329, 376, 470, 542, 560, 658, 752, 940, 1084, 1316, 1355, 1645, 1880, 1897, 2168, 2632, 2633, 2710, 3290, 3760, 3794, 4336, 5264, 5266, 5420, 6580, 7588, 9485, 10532, 10840, 12737, 13160, 13165, 15176, 18431, 18970, 21064, 21680, 25474, 26320, 26330, 30352, 36862, 37940, 42128, 50948, 52660, 63685, 73724, 75880, 89159, 92155, 101896, 105320, 123751, 127370, 147448, 151760, 178318, 184310, 203792, 210640, 247502, 254740, 294896, 356636, 368620, 445795, 495004, 509480, 618755, 713272, 713543, 737240, 866257, 891590, 990008, 1018960, 1237510, 1426544, 1427086, 1474480, 1732514, 1783180, 1980016, 2475020, 2854172, 3465028, 3566360, 3567715, 4331285, 4950040, 4994801, 5708344, 6930056, 7132720, 7135430, 8662570, 9900080, 9989602, 11416688, 13860112, 14270860, 17325140, 19979204, 24974005, 28541720, 33536521, 34650280, 39958408, 49948010, 57083440, 67073042, 69300560, 79916816, 99896020, 134146084, 167682605, 199792040, 234755647, 268292168, 335365210, 399584080, 469511294, 536584336, 670730420, 939022588, 1173778235, 1341460840, 1878045176, 2347556470, 2682921680, 3756090352, 4695112940, 9390225880, 18780451760]

約数ペア:

[(1, 18780451760), (2, 9390225880), (4, 4695112940), (5, 3756090352), (7, 2682921680), (8, 2347556470), (10, 1878045176), (14, 1341460840), (16, 1173778235), (20, 939022588), (28, 670730420), (35, 536584336), (40, 469511294), (47, 399584080), (56, 335365210), (70, 268292168), (80, 234755647), (94, 199792040), (112, 167682605), (140, 134146084), (188, 99896020), (235, 79916816), (271, 69300560), (280, 67073042), (329, 57083440), (376, 49948010), (470, 39958408), (542, 34650280), (560, 33536521), (658, 28541720), (752, 24974005), (940, 19979204), (1084, 17325140), (1316, 14270860), (1355, 13860112), (1645, 11416688), (1880, 9989602), (1897, 9900080), (2168, 8662570), (2632, 7135430), (2633, 7132720), (2710, 6930056), (3290, 5708344), (3760, 4994801), (3794, 4950040), (4336, 4331285), (5264, 3567715), (5266, 3566360), (5420, 3465028), (6580, 2854172), (7588, 2475020), (9485, 1980016), (10532, 1783180), (10840, 1732514), (12737, 1474480), (13160, 1427086), (13165, 1426544), (15176, 1237510), (18431, 1018960), (18970, 990008), (21064, 891590), (21680, 866257), (25474, 737240), (26320, 713543), (26330, 713272), (30352, 618755), (36862, 509480), (37940, 495004), (42128, 445795), (50948, 368620), (52660, 356636), (63685, 294896), (73724, 254740), (75880, 247502), (89159, 210640), (92155, 203792), (101896, 184310), (105320, 178318), (123751, 151760), (127370, 147448)]