209656720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{929}}^1$

素因数の和:993

約数の個数: 160

約数和(自身を含む): 619960320

約数和(自身を除く): 410303600

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, 248, 260, 280, 310, 364, 403, 434, 455, 496, 520, 560, 620, 728, 806, 868, 910, 929, 1040, 1085, 1240, 1456, 1612, 1736, 1820, 1858, 2015, 2170, 2480, 2821, 3224, 3472, 3640, 3716, 4030, 4340, 4645, 5642, 6448, 6503, 7280, 7432, 8060, 8680, 9290, 11284, 12077, 13006, 14105, 14864, 16120, 17360, 18580, 22568, 24154, 26012, 28210, 28799, 32240, 32515, 37160, 45136, 48308, 52024, 56420, 57598, 60385, 65030, 74320, 84539, 96616, 104048, 112840, 115196, 120770, 130060, 143995, 169078, 193232, 201593, 225680, 230392, 241540, 260120, 287990, 338156, 374387, 403186, 422695, 460784, 483080, 520240, 575980, 676312, 748774, 806372, 845390, 966160, 1007965, 1151960, 1352624, 1497548, 1612744, 1690780, 1871935, 2015930, 2303920, 2620709, 2995096, 3225488, 3381560, 3743870, 4031860, 5241418, 5990192, 6763120, 7487740, 8063720, 10482836, 13103545, 14975480, 16127440, 20965672, 26207090, 29950960, 41931344, 52414180, 104828360, 209656720]

約数ペア:

[(1, 209656720), (2, 104828360), (4, 52414180), (5, 41931344), (7, 29950960), (8, 26207090), (10, 20965672), (13, 16127440), (14, 14975480), (16, 13103545), (20, 10482836), (26, 8063720), (28, 7487740), (31, 6763120), (35, 5990192), (40, 5241418), (52, 4031860), (56, 3743870), (62, 3381560), (65, 3225488), (70, 2995096), (80, 2620709), (91, 2303920), (104, 2015930), (112, 1871935), (124, 1690780), (130, 1612744), (140, 1497548), (155, 1352624), (182, 1151960), (208, 1007965), (217, 966160), (248, 845390), (260, 806372), (280, 748774), (310, 676312), (364, 575980), (403, 520240), (434, 483080), (455, 460784), (496, 422695), (520, 403186), (560, 374387), (620, 338156), (728, 287990), (806, 260120), (868, 241540), (910, 230392), (929, 225680), (1040, 201593), (1085, 193232), (1240, 169078), (1456, 143995), (1612, 130060), (1736, 120770), (1820, 115196), (1858, 112840), (2015, 104048), (2170, 96616), (2480, 84539), (2821, 74320), (3224, 65030), (3472, 60385), (3640, 57598), (3716, 56420), (4030, 52024), (4340, 48308), (4645, 45136), (5642, 37160), (6448, 32515), (6503, 32240), (7280, 28799), (7432, 28210), (8060, 26012), (8680, 24154), (9290, 22568), (11284, 18580), (12077, 17360), (13006, 16120), (14105, 14864)]