209700400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{823}}^1$

素因数の和:868

約数の個数: 180

約数和(自身を含む): 631907472

約数和(自身を除く): 422207072

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 80, 91, 98, 100, 104, 112, 130, 140, 175, 182, 196, 200, 208, 245, 260, 280, 325, 350, 364, 392, 400, 455, 490, 520, 560, 637, 650, 700, 728, 784, 823, 910, 980, 1040, 1225, 1274, 1300, 1400, 1456, 1646, 1820, 1960, 2275, 2450, 2548, 2600, 2800, 3185, 3292, 3640, 3920, 4115, 4550, 4900, 5096, 5200, 5761, 6370, 6584, 7280, 8230, 9100, 9800, 10192, 10699, 11522, 12740, 13168, 15925, 16460, 18200, 19600, 20575, 21398, 23044, 25480, 28805, 31850, 32920, 36400, 40327, 41150, 42796, 46088, 50960, 53495, 57610, 63700, 65840, 74893, 80654, 82300, 85592, 92176, 106990, 115220, 127400, 144025, 149786, 161308, 164600, 171184, 201635, 213980, 230440, 254800, 267475, 288050, 299572, 322616, 329200, 374465, 403270, 427960, 460880, 524251, 534950, 576100, 599144, 645232, 748930, 806540, 855920, 1008175, 1048502, 1069900, 1152200, 1198288, 1497860, 1613080, 1872325, 2016350, 2097004, 2139800, 2304400, 2621255, 2995720, 3226160, 3744650, 4032700, 4194008, 4279600, 5242510, 5991440, 7489300, 8065400, 8388016, 10485020, 13106275, 14978600, 16130800, 20970040, 26212550, 29957200, 41940080, 52425100, 104850200, 209700400]

約数ペア:

[(1, 209700400), (2, 104850200), (4, 52425100), (5, 41940080), (7, 29957200), (8, 26212550), (10, 20970040), (13, 16130800), (14, 14978600), (16, 13106275), (20, 10485020), (25, 8388016), (26, 8065400), (28, 7489300), (35, 5991440), (40, 5242510), (49, 4279600), (50, 4194008), (52, 4032700), (56, 3744650), (65, 3226160), (70, 2995720), (80, 2621255), (91, 2304400), (98, 2139800), (100, 2097004), (104, 2016350), (112, 1872325), (130, 1613080), (140, 1497860), (175, 1198288), (182, 1152200), (196, 1069900), (200, 1048502), (208, 1008175), (245, 855920), (260, 806540), (280, 748930), (325, 645232), (350, 599144), (364, 576100), (392, 534950), (400, 524251), (455, 460880), (490, 427960), (520, 403270), (560, 374465), (637, 329200), (650, 322616), (700, 299572), (728, 288050), (784, 267475), (823, 254800), (910, 230440), (980, 213980), (1040, 201635), (1225, 171184), (1274, 164600), (1300, 161308), (1400, 149786), (1456, 144025), (1646, 127400), (1820, 115220), (1960, 106990), (2275, 92176), (2450, 85592), (2548, 82300), (2600, 80654), (2800, 74893), (3185, 65840), (3292, 63700), (3640, 57610), (3920, 53495), (4115, 50960), (4550, 46088), (4900, 42796), (5096, 41150), (5200, 40327), (5761, 36400), (6370, 32920), (6584, 31850), (7280, 28805), (8230, 25480), (9100, 23044), (9800, 21398), (10192, 20575), (10699, 19600), (11522, 18200), (12740, 16460), (13168, 15925)]