128437380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{823}}^1$

素因数の和:875

約数の個数: 144

約数和(自身を含む): 424986240

約数和(自身を除く): 296548860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 85, 90, 102, 108, 135, 153, 170, 180, 204, 255, 270, 289, 306, 340, 459, 510, 540, 578, 612, 765, 823, 867, 918, 1020, 1156, 1445, 1530, 1646, 1734, 1836, 2295, 2469, 2601, 2890, 3060, 3292, 3468, 4115, 4335, 4590, 4938, 5202, 5780, 7407, 7803, 8230, 8670, 9180, 9876, 10404, 12345, 13005, 13991, 14814, 15606, 16460, 17340, 22221, 24690, 26010, 27982, 29628, 31212, 37035, 39015, 41973, 44442, 49380, 52020, 55964, 69955, 74070, 78030, 83946, 88884, 111105, 125919, 139910, 148140, 156060, 167892, 209865, 222210, 237847, 251838, 279820, 377757, 419730, 444420, 475694, 503676, 629595, 713541, 755514, 839460, 951388, 1189235, 1259190, 1427082, 1511028, 1888785, 2140623, 2378470, 2518380, 2854164, 3567705, 3777570, 4281246, 4756940, 6421869, 7135410, 7555140, 8562492, 10703115, 12843738, 14270820, 21406230, 25687476, 32109345, 42812460, 64218690, 128437380]

約数ペア:

[(1, 128437380), (2, 64218690), (3, 42812460), (4, 32109345), (5, 25687476), (6, 21406230), (9, 14270820), (10, 12843738), (12, 10703115), (15, 8562492), (17, 7555140), (18, 7135410), (20, 6421869), (27, 4756940), (30, 4281246), (34, 3777570), (36, 3567705), (45, 2854164), (51, 2518380), (54, 2378470), (60, 2140623), (68, 1888785), (85, 1511028), (90, 1427082), (102, 1259190), (108, 1189235), (135, 951388), (153, 839460), (170, 755514), (180, 713541), (204, 629595), (255, 503676), (270, 475694), (289, 444420), (306, 419730), (340, 377757), (459, 279820), (510, 251838), (540, 237847), (578, 222210), (612, 209865), (765, 167892), (823, 156060), (867, 148140), (918, 139910), (1020, 125919), (1156, 111105), (1445, 88884), (1530, 83946), (1646, 78030), (1734, 74070), (1836, 69955), (2295, 55964), (2469, 52020), (2601, 49380), (2890, 44442), (3060, 41973), (3292, 39015), (3468, 37035), (4115, 31212), (4335, 29628), (4590, 27982), (4938, 26010), (5202, 24690), (5780, 22221), (7407, 17340), (7803, 16460), (8230, 15606), (8670, 14814), (9180, 13991), (9876, 13005), (10404, 12345)]