28155520

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:126

約数の個数: 128

約数和(自身を含む): 73256400

約数和(自身を除く): 45100880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 37, 40, 41, 58, 64, 74, 80, 82, 116, 128, 145, 148, 160, 164, 185, 205, 232, 290, 296, 320, 328, 370, 410, 464, 580, 592, 640, 656, 740, 820, 928, 1073, 1160, 1184, 1189, 1312, 1480, 1517, 1640, 1856, 2146, 2320, 2368, 2378, 2624, 2960, 3034, 3280, 3712, 4292, 4640, 4736, 4756, 5248, 5365, 5920, 5945, 6068, 6560, 7585, 8584, 9280, 9512, 10730, 11840, 11890, 12136, 13120, 15170, 17168, 18560, 19024, 21460, 23680, 23780, 24272, 26240, 30340, 34336, 38048, 42920, 43993, 47560, 48544, 60680, 68672, 76096, 85840, 87986, 95120, 97088, 121360, 137344, 152192, 171680, 175972, 190240, 194176, 219965, 242720, 343360, 351944, 380480, 439930, 485440, 686720, 703888, 760960, 879860, 970880, 1407776, 1759720, 2815552, 3519440, 5631104, 7038880, 14077760, 28155520]

約数ペア:

[(1, 28155520), (2, 14077760), (4, 7038880), (5, 5631104), (8, 3519440), (10, 2815552), (16, 1759720), (20, 1407776), (29, 970880), (32, 879860), (37, 760960), (40, 703888), (41, 686720), (58, 485440), (64, 439930), (74, 380480), (80, 351944), (82, 343360), (116, 242720), (128, 219965), (145, 194176), (148, 190240), (160, 175972), (164, 171680), (185, 152192), (205, 137344), (232, 121360), (290, 97088), (296, 95120), (320, 87986), (328, 85840), (370, 76096), (410, 68672), (464, 60680), (580, 48544), (592, 47560), (640, 43993), (656, 42920), (740, 38048), (820, 34336), (928, 30340), (1073, 26240), (1160, 24272), (1184, 23780), (1189, 23680), (1312, 21460), (1480, 19024), (1517, 18560), (1640, 17168), (1856, 15170), (2146, 13120), (2320, 12136), (2368, 11890), (2378, 11840), (2624, 10730), (2960, 9512), (3034, 9280), (3280, 8584), (3712, 7585), (4292, 6560), (4640, 6068), (4736, 5945), (4756, 5920), (5248, 5365)]