1988947980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{216661}}^1$

素因数の和:216696

約数の個数: 96

約数和(自身を含む): 6551858880

約数和(自身を除く): 4562910900

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, 306, 340, 459, 510, 540, 612, 765, 918, 1020, 1530, 1836, 2295, 3060, 4590, 9180, 216661, 433322, 649983, 866644, 1083305, 1299966, 1949949, 2166610, 2599932, 3249915, 3683237, 3899898, 4333220, 5849847, 6499830, 7366474, 7799796, 9749745, 11049711, 11699694, 12999660, 14732948, 18416185, 19499490, 22099422, 23399388, 29249235, 33149133, 36832370, 38998980, 44198844, 55248555, 58498470, 66298266, 73664740, 99447399, 110497110, 116996940, 132596532, 165745665, 198894798, 220994220, 331491330, 397789596, 497236995, 662982660, 994473990, 1988947980]

約数ペア:

[(1, 1988947980), (2, 994473990), (3, 662982660), (4, 497236995), (5, 397789596), (6, 331491330), (9, 220994220), (10, 198894798), (12, 165745665), (15, 132596532), (17, 116996940), (18, 110497110), (20, 99447399), (27, 73664740), (30, 66298266), (34, 58498470), (36, 55248555), (45, 44198844), (51, 38998980), (54, 36832370), (60, 33149133), (68, 29249235), (85, 23399388), (90, 22099422), (102, 19499490), (108, 18416185), (135, 14732948), (153, 12999660), (170, 11699694), (180, 11049711), (204, 9749745), (255, 7799796), (270, 7366474), (306, 6499830), (340, 5849847), (459, 4333220), (510, 3899898), (540, 3683237), (612, 3249915), (765, 2599932), (918, 2166610), (1020, 1949949), (1530, 1299966), (1836, 1083305), (2295, 866644), (3060, 649983), (4590, 433322), (9180, 216661)]