19508031218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{991}}^1$

素因数の和:1323

約数の個数: 64

約数和(自身を含む): 32757903360

約数和(自身を除く): 13249872142

約数列:

[1, 2, 13, 26, 47, 89, 94, 178, 181, 362, 611, 991, 1157, 1222, 1982, 2314, 2353, 4183, 4706, 8366, 8507, 12883, 16109, 17014, 25766, 32218, 46577, 54379, 88199, 93154, 108758, 110591, 176398, 179371, 209417, 221182, 358742, 418834, 605501, 757123, 1146587, 1211002, 1514246, 2293174, 2331823, 4145353, 4663646, 8290706, 8430437, 9842599, 15964019, 16860874, 19685198, 31928038, 53889589, 107779178, 109595681, 207532247, 219191362, 415064494, 750308893, 1500617786, 9754015609, 19508031218]

約数ペア:

[(1, 19508031218), (2, 9754015609), (13, 1500617786), (26, 750308893), (47, 415064494), (89, 219191362), (94, 207532247), (178, 109595681), (181, 107779178), (362, 53889589), (611, 31928038), (991, 19685198), (1157, 16860874), (1222, 15964019), (1982, 9842599), (2314, 8430437), (2353, 8290706), (4183, 4663646), (4706, 4145353), (8366, 2331823), (8507, 2293174), (12883, 1514246), (16109, 1211002), (17014, 1146587), (25766, 757123), (32218, 605501), (46577, 418834), (54379, 358742), (88199, 221182), (93154, 209417), (108758, 179371), (110591, 176398)]