245998720

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:534

約数の個数: 128

約数和(自身を含む): 650825280

約数和(自身を除く): 404826560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 83, 88, 110, 128, 160, 166, 176, 220, 320, 332, 352, 415, 421, 440, 640, 664, 704, 830, 842, 880, 913, 1328, 1408, 1660, 1684, 1760, 1826, 2105, 2656, 3320, 3368, 3520, 3652, 4210, 4565, 4631, 5312, 6640, 6736, 7040, 7304, 8420, 9130, 9262, 10624, 13280, 13472, 14608, 16840, 18260, 18524, 23155, 26560, 26944, 29216, 33680, 34943, 36520, 37048, 46310, 53120, 53888, 58432, 67360, 69886, 73040, 74096, 92620, 116864, 134720, 139772, 146080, 148192, 174715, 185240, 269440, 279544, 292160, 296384, 349430, 370480, 384373, 559088, 584320, 592768, 698860, 740960, 768746, 1118176, 1397720, 1481920, 1537492, 1921865, 2236352, 2795440, 2963840, 3074984, 3843730, 4472704, 5590880, 6149968, 7687460, 11181760, 12299936, 15374920, 22363520, 24599872, 30749840, 49199744, 61499680, 122999360, 245998720]

約数ペア:

[(1, 245998720), (2, 122999360), (4, 61499680), (5, 49199744), (8, 30749840), (10, 24599872), (11, 22363520), (16, 15374920), (20, 12299936), (22, 11181760), (32, 7687460), (40, 6149968), (44, 5590880), (55, 4472704), (64, 3843730), (80, 3074984), (83, 2963840), (88, 2795440), (110, 2236352), (128, 1921865), (160, 1537492), (166, 1481920), (176, 1397720), (220, 1118176), (320, 768746), (332, 740960), (352, 698860), (415, 592768), (421, 584320), (440, 559088), (640, 384373), (664, 370480), (704, 349430), (830, 296384), (842, 292160), (880, 279544), (913, 269440), (1328, 185240), (1408, 174715), (1660, 148192), (1684, 146080), (1760, 139772), (1826, 134720), (2105, 116864), (2656, 92620), (3320, 74096), (3368, 73040), (3520, 69886), (3652, 67360), (4210, 58432), (4565, 53888), (4631, 53120), (5312, 46310), (6640, 37048), (6736, 36520), (7040, 34943), (7304, 33680), (8420, 29216), (9130, 26944), (9262, 26560), (10624, 23155), (13280, 18524), (13472, 18260), (14608, 16840)]