231745280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{733}}^1$

素因数の和:786

約数の個数: 144

約数和(自身を含む): 630124320

約数和(自身を除く): 398379040

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, 520, 608, 640, 733, 760, 832, 988, 1040, 1216, 1235, 1280, 1466, 1520, 1664, 1976, 2080, 2432, 2470, 2932, 3040, 3328, 3665, 3952, 4160, 4864, 4940, 5864, 6080, 7330, 7904, 8320, 9529, 9880, 11728, 12160, 13927, 14660, 15808, 16640, 19058, 19760, 23456, 24320, 27854, 29320, 31616, 38116, 39520, 46912, 47645, 55708, 58640, 63232, 69635, 76232, 79040, 93824, 95290, 111416, 117280, 139270, 152464, 158080, 181051, 187648, 190580, 222832, 234560, 278540, 304928, 316160, 362102, 381160, 445664, 469120, 557080, 609856, 724204, 762320, 891328, 905255, 938240, 1114160, 1219712, 1448408, 1524640, 1782656, 1810510, 2228320, 2439424, 2896816, 3049280, 3565312, 3621020, 4456640, 5793632, 6098560, 7242040, 8913280, 11587264, 12197120, 14484080, 17826560, 23174528, 28968160, 46349056, 57936320, 115872640, 231745280]

約数ペア:

[(1, 231745280), (2, 115872640), (4, 57936320), (5, 46349056), (8, 28968160), (10, 23174528), (13, 17826560), (16, 14484080), (19, 12197120), (20, 11587264), (26, 8913280), (32, 7242040), (38, 6098560), (40, 5793632), (52, 4456640), (64, 3621020), (65, 3565312), (76, 3049280), (80, 2896816), (95, 2439424), (104, 2228320), (128, 1810510), (130, 1782656), (152, 1524640), (160, 1448408), (190, 1219712), (208, 1114160), (247, 938240), (256, 905255), (260, 891328), (304, 762320), (320, 724204), (380, 609856), (416, 557080), (494, 469120), (520, 445664), (608, 381160), (640, 362102), (733, 316160), (760, 304928), (832, 278540), (988, 234560), (1040, 222832), (1216, 190580), (1235, 187648), (1280, 181051), (1466, 158080), (1520, 152464), (1664, 139270), (1976, 117280), (2080, 111416), (2432, 95290), (2470, 93824), (2932, 79040), (3040, 76232), (3328, 69635), (3665, 63232), (3952, 58640), (4160, 55708), (4864, 47645), (4940, 46912), (5864, 39520), (6080, 38116), (7330, 31616), (7904, 29320), (8320, 27854), (9529, 24320), (9880, 23456), (11728, 19760), (12160, 19058), (13927, 16640), (14660, 15808)]