51680720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:293

約数の個数: 160

約数和(自身を含む): 153323520

約数和(自身を除く): 101642800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 182, 208, 217, 229, 248, 260, 280, 310, 364, 403, 434, 455, 458, 496, 520, 560, 620, 728, 806, 868, 910, 916, 1040, 1085, 1145, 1240, 1456, 1603, 1612, 1736, 1820, 1832, 2015, 2170, 2290, 2480, 2821, 2977, 3206, 3224, 3472, 3640, 3664, 4030, 4340, 4580, 5642, 5954, 6412, 6448, 7099, 7280, 8015, 8060, 8680, 9160, 11284, 11908, 12824, 14105, 14198, 14885, 16030, 16120, 17360, 18320, 20839, 22568, 23816, 25648, 28210, 28396, 29770, 32060, 32240, 35495, 41678, 45136, 47632, 49693, 56420, 56792, 59540, 64120, 70990, 83356, 92287, 99386, 104195, 112840, 113584, 119080, 128240, 141980, 166712, 184574, 198772, 208390, 225680, 238160, 248465, 283960, 333424, 369148, 397544, 416780, 461435, 496930, 567920, 646009, 738296, 795088, 833560, 922870, 993860, 1292018, 1476592, 1667120, 1845740, 1987720, 2584036, 3230045, 3691480, 3975440, 5168072, 6460090, 7382960, 10336144, 12920180, 25840360, 51680720]

約数ペア:

[(1, 51680720), (2, 25840360), (4, 12920180), (5, 10336144), (7, 7382960), (8, 6460090), (10, 5168072), (13, 3975440), (14, 3691480), (16, 3230045), (20, 2584036), (26, 1987720), (28, 1845740), (31, 1667120), (35, 1476592), (40, 1292018), (52, 993860), (56, 922870), (62, 833560), (65, 795088), (70, 738296), (80, 646009), (91, 567920), (104, 496930), (112, 461435), (124, 416780), (130, 397544), (140, 369148), (155, 333424), (182, 283960), (208, 248465), (217, 238160), (229, 225680), (248, 208390), (260, 198772), (280, 184574), (310, 166712), (364, 141980), (403, 128240), (434, 119080), (455, 113584), (458, 112840), (496, 104195), (520, 99386), (560, 92287), (620, 83356), (728, 70990), (806, 64120), (868, 59540), (910, 56792), (916, 56420), (1040, 49693), (1085, 47632), (1145, 45136), (1240, 41678), (1456, 35495), (1603, 32240), (1612, 32060), (1736, 29770), (1820, 28396), (1832, 28210), (2015, 25648), (2170, 23816), (2290, 22568), (2480, 20839), (2821, 18320), (2977, 17360), (3206, 16120), (3224, 16030), (3472, 14885), (3640, 14198), (3664, 14105), (4030, 12824), (4340, 11908), (4580, 11284), (5642, 9160), (5954, 8680), (6412, 8060), (6448, 8015), (7099, 7280)]