20177963200

素因数分解:

$2^6\times 5^2\times {\mathrm{127}}^1\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:847

約数の個数: 168

約数和(自身を含む): 50393600000

約数和(自身を除く): 30215636800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 160, 199, 200, 254, 320, 398, 400, 499, 508, 635, 796, 800, 995, 998, 1016, 1270, 1592, 1600, 1990, 1996, 2032, 2495, 2540, 3175, 3184, 3980, 3992, 4064, 4975, 4990, 5080, 6350, 6368, 7960, 7984, 8128, 9950, 9980, 10160, 12475, 12700, 12736, 15920, 15968, 19900, 19960, 20320, 24950, 25273, 25400, 31840, 31936, 39800, 39920, 40640, 49900, 50546, 50800, 63373, 63680, 79600, 79840, 99301, 99800, 101092, 101600, 126365, 126746, 159200, 159680, 198602, 199600, 202184, 203200, 252730, 253492, 316865, 318400, 397204, 399200, 404368, 496505, 505460, 506984, 631825, 633730, 794408, 798400, 808736, 993010, 1010920, 1013968, 1263650, 1267460, 1584325, 1588816, 1617472, 1986020, 2021840, 2027936, 2482525, 2527300, 2534920, 3168650, 3177632, 3972040, 4043680, 4055872, 4965050, 5054600, 5069840, 6337300, 6355264, 7944080, 8087360, 9930100, 10109200, 10139680, 12611227, 12674600, 15888160, 19860200, 20218400, 20279360, 25222454, 25349200, 31776320, 39720400, 40436800, 50444908, 50698400, 63056135, 79440800, 100889816, 101396800, 126112270, 158881600, 201779632, 252224540, 315280675, 403559264, 504449080, 630561350, 807118528, 1008898160, 1261122700, 2017796320, 2522245400, 4035592640, 5044490800, 10088981600, 20177963200]

約数ペア:

[(1, 20177963200), (2, 10088981600), (4, 5044490800), (5, 4035592640), (8, 2522245400), (10, 2017796320), (16, 1261122700), (20, 1008898160), (25, 807118528), (32, 630561350), (40, 504449080), (50, 403559264), (64, 315280675), (80, 252224540), (100, 201779632), (127, 158881600), (160, 126112270), (199, 101396800), (200, 100889816), (254, 79440800), (320, 63056135), (398, 50698400), (400, 50444908), (499, 40436800), (508, 39720400), (635, 31776320), (796, 25349200), (800, 25222454), (995, 20279360), (998, 20218400), (1016, 19860200), (1270, 15888160), (1592, 12674600), (1600, 12611227), (1990, 10139680), (1996, 10109200), (2032, 9930100), (2495, 8087360), (2540, 7944080), (3175, 6355264), (3184, 6337300), (3980, 5069840), (3992, 5054600), (4064, 4965050), (4975, 4055872), (4990, 4043680), (5080, 3972040), (6350, 3177632), (6368, 3168650), (7960, 2534920), (7984, 2527300), (8128, 2482525), (9950, 2027936), (9980, 2021840), (10160, 1986020), (12475, 1617472), (12700, 1588816), (12736, 1584325), (15920, 1267460), (15968, 1263650), (19900, 1013968), (19960, 1010920), (20320, 993010), (24950, 808736), (25273, 798400), (25400, 794408), (31840, 633730), (31936, 631825), (39800, 506984), (39920, 505460), (40640, 496505), (49900, 404368), (50546, 399200), (50800, 397204), (63373, 318400), (63680, 316865), (79600, 253492), (79840, 252730), (99301, 203200), (99800, 202184), (101092, 199600), (101600, 198602), (126365, 159680), (126746, 159200)]