1205201920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{953}}^1$

素因数の和:1010

約数の個数: 176

約数和(自身を含む): 3280767840

約数和(自身を除く): 2075565920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 128, 130, 152, 160, 190, 208, 247, 256, 260, 304, 320, 380, 416, 494, 512, 520, 608, 640, 760, 832, 953, 988, 1024, 1040, 1216, 1235, 1280, 1520, 1664, 1906, 1976, 2080, 2432, 2470, 2560, 3040, 3328, 3812, 3952, 4160, 4765, 4864, 4940, 5120, 6080, 6656, 7624, 7904, 8320, 9530, 9728, 9880, 12160, 12389, 13312, 15248, 15808, 16640, 18107, 19060, 19456, 19760, 24320, 24778, 30496, 31616, 33280, 36214, 38120, 39520, 48640, 49556, 60992, 61945, 63232, 66560, 72428, 76240, 79040, 90535, 97280, 99112, 121984, 123890, 126464, 144856, 152480, 158080, 181070, 198224, 235391, 243968, 247780, 252928, 289712, 304960, 316160, 362140, 396448, 470782, 487936, 495560, 579424, 609920, 632320, 724280, 792896, 941564, 975872, 991120, 1158848, 1176955, 1219840, 1264640, 1448560, 1585792, 1883128, 1982240, 2317696, 2353910, 2439680, 2897120, 3171584, 3766256, 3964480, 4635392, 4707820, 4879360, 5794240, 6343168, 7532512, 7928960, 9270784, 9415640, 11588480, 12686336, 15065024, 15857920, 18541568, 18831280, 23176960, 30130048, 31715840, 37662560, 46353920, 60260096, 63431680, 75325120, 92707840, 120520192, 150650240, 241040384, 301300480, 602600960, 1205201920]

約数ペア:

[(1, 1205201920), (2, 602600960), (4, 301300480), (5, 241040384), (8, 150650240), (10, 120520192), (13, 92707840), (16, 75325120), (19, 63431680), (20, 60260096), (26, 46353920), (32, 37662560), (38, 31715840), (40, 30130048), (52, 23176960), (64, 18831280), (65, 18541568), (76, 15857920), (80, 15065024), (95, 12686336), (104, 11588480), (128, 9415640), (130, 9270784), (152, 7928960), (160, 7532512), (190, 6343168), (208, 5794240), (247, 4879360), (256, 4707820), (260, 4635392), (304, 3964480), (320, 3766256), (380, 3171584), (416, 2897120), (494, 2439680), (512, 2353910), (520, 2317696), (608, 1982240), (640, 1883128), (760, 1585792), (832, 1448560), (953, 1264640), (988, 1219840), (1024, 1176955), (1040, 1158848), (1216, 991120), (1235, 975872), (1280, 941564), (1520, 792896), (1664, 724280), (1906, 632320), (1976, 609920), (2080, 579424), (2432, 495560), (2470, 487936), (2560, 470782), (3040, 396448), (3328, 362140), (3812, 316160), (3952, 304960), (4160, 289712), (4765, 252928), (4864, 247780), (4940, 243968), (5120, 235391), (6080, 198224), (6656, 181070), (7624, 158080), (7904, 152480), (8320, 144856), (9530, 126464), (9728, 123890), (9880, 121984), (12160, 99112), (12389, 97280), (13312, 90535), (15248, 79040), (15808, 76240), (16640, 72428), (18107, 66560), (19060, 63232), (19456, 61945), (19760, 60992), (24320, 49556), (24778, 48640), (30496, 39520), (31616, 38120), (33280, 36214)]