199078740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{157999}}^1$

素因数の和:158021

約数の個数: 72

約数和(自身を含む): 690144000

約数和(自身を除く): 491065260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 157999, 315998, 473997, 631996, 789995, 947994, 1105993, 1421991, 1579990, 1895988, 2211986, 2369985, 2843982, 3159980, 3317979, 4423972, 4739970, 5529965, 5687964, 6635958, 7109955, 9479940, 9953937, 11059930, 13271916, 14219910, 16589895, 19907874, 22119860, 28439820, 33179790, 39815748, 49769685, 66359580, 99539370, 199078740]

約数ペア:

[(1, 199078740), (2, 99539370), (3, 66359580), (4, 49769685), (5, 39815748), (6, 33179790), (7, 28439820), (9, 22119860), (10, 19907874), (12, 16589895), (14, 14219910), (15, 13271916), (18, 11059930), (20, 9953937), (21, 9479940), (28, 7109955), (30, 6635958), (35, 5687964), (36, 5529965), (42, 4739970), (45, 4423972), (60, 3317979), (63, 3159980), (70, 2843982), (84, 2369985), (90, 2211986), (105, 1895988), (126, 1579990), (140, 1421991), (180, 1105993), (210, 947994), (252, 789995), (315, 631996), (420, 473997), (630, 315998), (1260, 157999)]