31041720

素因数分解:

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

素因数の和:226

約数の個数: 144

約数和(自身を含む): 106109640

約数和(自身を除く): 75067920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 163, 180, 184, 207, 230, 276, 326, 345, 360, 414, 460, 489, 529, 552, 652, 690, 815, 828, 920, 978, 1035, 1058, 1304, 1380, 1467, 1587, 1630, 1656, 1956, 2070, 2116, 2445, 2645, 2760, 2934, 3174, 3260, 3749, 3912, 4140, 4232, 4761, 4890, 5290, 5868, 6348, 6520, 7335, 7498, 7935, 8280, 9522, 9780, 10580, 11247, 11736, 12696, 14670, 14996, 15870, 18745, 19044, 19560, 21160, 22494, 23805, 29340, 29992, 31740, 33741, 37490, 38088, 44988, 47610, 56235, 58680, 63480, 67482, 74980, 86227, 89976, 95220, 112470, 134964, 149960, 168705, 172454, 190440, 224940, 258681, 269928, 337410, 344908, 431135, 449880, 517362, 674820, 689816, 776043, 862270, 1034724, 1293405, 1349640, 1552086, 1724540, 2069448, 2586810, 3104172, 3449080, 3880215, 5173620, 6208344, 7760430, 10347240, 15520860, 31041720]

約数ペア:

[(1, 31041720), (2, 15520860), (3, 10347240), (4, 7760430), (5, 6208344), (6, 5173620), (8, 3880215), (9, 3449080), (10, 3104172), (12, 2586810), (15, 2069448), (18, 1724540), (20, 1552086), (23, 1349640), (24, 1293405), (30, 1034724), (36, 862270), (40, 776043), (45, 689816), (46, 674820), (60, 517362), (69, 449880), (72, 431135), (90, 344908), (92, 337410), (115, 269928), (120, 258681), (138, 224940), (163, 190440), (180, 172454), (184, 168705), (207, 149960), (230, 134964), (276, 112470), (326, 95220), (345, 89976), (360, 86227), (414, 74980), (460, 67482), (489, 63480), (529, 58680), (552, 56235), (652, 47610), (690, 44988), (815, 38088), (828, 37490), (920, 33741), (978, 31740), (1035, 29992), (1058, 29340), (1304, 23805), (1380, 22494), (1467, 21160), (1587, 19560), (1630, 19044), (1656, 18745), (1956, 15870), (2070, 14996), (2116, 14670), (2445, 12696), (2645, 11736), (2760, 11247), (2934, 10580), (3174, 9780), (3260, 9522), (3749, 8280), (3912, 7935), (4140, 7498), (4232, 7335), (4761, 6520), (4890, 6348), (5290, 5868)]