155508520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 128

約数和(自身を含む): 395331840

約数和(自身を除く): 239823320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 61, 68, 85, 92, 115, 122, 136, 163, 170, 184, 230, 244, 305, 326, 340, 391, 460, 488, 610, 652, 680, 782, 815, 920, 1037, 1220, 1304, 1403, 1564, 1630, 1955, 2074, 2440, 2771, 2806, 3128, 3260, 3749, 3910, 4148, 5185, 5542, 5612, 6520, 7015, 7498, 7820, 8296, 9943, 10370, 11084, 11224, 13855, 14030, 14996, 15640, 18745, 19886, 20740, 22168, 23851, 27710, 28060, 29992, 37490, 39772, 41480, 47702, 49715, 55420, 56120, 63733, 74980, 79544, 95404, 99430, 110840, 119255, 127466, 149960, 169031, 190808, 198860, 228689, 238510, 254932, 318665, 338062, 397720, 457378, 477020, 509864, 637330, 676124, 845155, 914756, 954040, 1143445, 1274660, 1352248, 1690310, 1829512, 2286890, 2549320, 3380620, 3887713, 4573780, 6761240, 7775426, 9147560, 15550852, 19438565, 31101704, 38877130, 77754260, 155508520]

約数ペア:

[(1, 155508520), (2, 77754260), (4, 38877130), (5, 31101704), (8, 19438565), (10, 15550852), (17, 9147560), (20, 7775426), (23, 6761240), (34, 4573780), (40, 3887713), (46, 3380620), (61, 2549320), (68, 2286890), (85, 1829512), (92, 1690310), (115, 1352248), (122, 1274660), (136, 1143445), (163, 954040), (170, 914756), (184, 845155), (230, 676124), (244, 637330), (305, 509864), (326, 477020), (340, 457378), (391, 397720), (460, 338062), (488, 318665), (610, 254932), (652, 238510), (680, 228689), (782, 198860), (815, 190808), (920, 169031), (1037, 149960), (1220, 127466), (1304, 119255), (1403, 110840), (1564, 99430), (1630, 95404), (1955, 79544), (2074, 74980), (2440, 63733), (2771, 56120), (2806, 55420), (3128, 49715), (3260, 47702), (3749, 41480), (3910, 39772), (4148, 37490), (5185, 29992), (5542, 28060), (5612, 27710), (6520, 23851), (7015, 22168), (7498, 20740), (7820, 19886), (8296, 18745), (9943, 15640), (10370, 14996), (11084, 14030), (11224, 13855)]