31007520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:435

約数の個数: 144

約数和(自身を含む): 107852472

約数和(自身を除く): 76844952

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 61, 72, 80, 90, 96, 120, 122, 144, 160, 180, 183, 240, 244, 288, 305, 353, 360, 366, 480, 488, 549, 610, 706, 720, 732, 915, 976, 1059, 1098, 1220, 1412, 1440, 1464, 1765, 1830, 1952, 2118, 2196, 2440, 2745, 2824, 2928, 3177, 3530, 3660, 4236, 4392, 4880, 5295, 5490, 5648, 5856, 6354, 7060, 7320, 8472, 8784, 9760, 10590, 10980, 11296, 12708, 14120, 14640, 15885, 16944, 17568, 21180, 21533, 21960, 25416, 28240, 29280, 31770, 33888, 42360, 43066, 43920, 50832, 56480, 63540, 64599, 84720, 86132, 87840, 101664, 107665, 127080, 129198, 169440, 172264, 193797, 215330, 254160, 258396, 322995, 344528, 387594, 430660, 508320, 516792, 645990, 689056, 775188, 861320, 968985, 1033584, 1291980, 1550376, 1722640, 1937970, 2067168, 2583960, 3100752, 3445280, 3875940, 5167920, 6201504, 7751880, 10335840, 15503760, 31007520]

約数ペア:

[(1, 31007520), (2, 15503760), (3, 10335840), (4, 7751880), (5, 6201504), (6, 5167920), (8, 3875940), (9, 3445280), (10, 3100752), (12, 2583960), (15, 2067168), (16, 1937970), (18, 1722640), (20, 1550376), (24, 1291980), (30, 1033584), (32, 968985), (36, 861320), (40, 775188), (45, 689056), (48, 645990), (60, 516792), (61, 508320), (72, 430660), (80, 387594), (90, 344528), (96, 322995), (120, 258396), (122, 254160), (144, 215330), (160, 193797), (180, 172264), (183, 169440), (240, 129198), (244, 127080), (288, 107665), (305, 101664), (353, 87840), (360, 86132), (366, 84720), (480, 64599), (488, 63540), (549, 56480), (610, 50832), (706, 43920), (720, 43066), (732, 42360), (915, 33888), (976, 31770), (1059, 29280), (1098, 28240), (1220, 25416), (1412, 21960), (1440, 21533), (1464, 21180), (1765, 17568), (1830, 16944), (1952, 15885), (2118, 14640), (2196, 14120), (2440, 12708), (2745, 11296), (2824, 10980), (2928, 10590), (3177, 9760), (3530, 8784), (3660, 8472), (4236, 7320), (4392, 7060), (4880, 6354), (5295, 5856), (5490, 5648)]