80172820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:103

約数の個数: 192

約数和(自身を含む): 225792000

約数和(自身を除く): 145619180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 31, 35, 49, 52, 58, 62, 65, 70, 91, 98, 116, 124, 130, 140, 145, 155, 182, 196, 203, 217, 245, 260, 290, 310, 343, 364, 377, 403, 406, 434, 455, 490, 580, 620, 637, 686, 754, 806, 812, 868, 899, 910, 980, 1015, 1085, 1274, 1372, 1421, 1508, 1519, 1612, 1715, 1798, 1820, 1885, 2015, 2030, 2170, 2548, 2639, 2821, 2842, 3038, 3185, 3430, 3596, 3770, 4030, 4060, 4340, 4459, 4495, 5278, 5642, 5684, 6076, 6293, 6370, 6860, 7105, 7540, 7595, 8060, 8918, 8990, 9947, 10556, 10633, 11284, 11687, 12586, 12740, 13195, 14105, 14210, 15190, 17836, 17980, 18473, 19747, 19894, 21266, 22295, 23374, 25172, 26390, 28210, 28420, 30380, 31465, 36946, 39494, 39788, 42532, 44051, 44590, 46748, 49735, 52780, 53165, 56420, 58435, 62930, 73892, 78988, 81809, 88102, 89180, 92365, 98735, 99470, 106330, 116870, 125860, 129311, 138229, 163618, 176204, 184730, 197470, 198940, 212660, 220255, 233740, 258622, 276458, 308357, 327236, 369460, 394940, 409045, 440510, 517244, 552916, 572663, 616714, 646555, 691145, 818090, 881020, 1145326, 1233428, 1293110, 1382290, 1541785, 1636180, 2290652, 2586220, 2764580, 2863315, 3083570, 4008641, 5726630, 6167140, 8017282, 11453260, 16034564, 20043205, 40086410, 80172820]

約数ペア:

[(1, 80172820), (2, 40086410), (4, 20043205), (5, 16034564), (7, 11453260), (10, 8017282), (13, 6167140), (14, 5726630), (20, 4008641), (26, 3083570), (28, 2863315), (29, 2764580), (31, 2586220), (35, 2290652), (49, 1636180), (52, 1541785), (58, 1382290), (62, 1293110), (65, 1233428), (70, 1145326), (91, 881020), (98, 818090), (116, 691145), (124, 646555), (130, 616714), (140, 572663), (145, 552916), (155, 517244), (182, 440510), (196, 409045), (203, 394940), (217, 369460), (245, 327236), (260, 308357), (290, 276458), (310, 258622), (343, 233740), (364, 220255), (377, 212660), (403, 198940), (406, 197470), (434, 184730), (455, 176204), (490, 163618), (580, 138229), (620, 129311), (637, 125860), (686, 116870), (754, 106330), (806, 99470), (812, 98735), (868, 92365), (899, 89180), (910, 88102), (980, 81809), (1015, 78988), (1085, 73892), (1274, 62930), (1372, 58435), (1421, 56420), (1508, 53165), (1519, 52780), (1612, 49735), (1715, 46748), (1798, 44590), (1820, 44051), (1885, 42532), (2015, 39788), (2030, 39494), (2170, 36946), (2548, 31465), (2639, 30380), (2821, 28420), (2842, 28210), (3038, 26390), (3185, 25172), (3430, 23374), (3596, 22295), (3770, 21266), (4030, 19894), (4060, 19747), (4340, 18473), (4459, 17980), (4495, 17836), (5278, 15190), (5642, 14210), (5684, 14105), (6076, 13195), (6293, 12740), (6370, 12586), (6860, 11687), (7105, 11284), (7540, 10633), (7595, 10556), (8060, 9947), (8918, 8990)]