19908380

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 23274340

約数列:

[1, 2, 4, 5, 10, 20, 67, 83, 134, 166, 179, 268, 332, 335, 358, 415, 670, 716, 830, 895, 1340, 1660, 1790, 3580, 5561, 11122, 11993, 14857, 22244, 23986, 27805, 29714, 47972, 55610, 59428, 59965, 74285, 111220, 119930, 148570, 239860, 297140, 995419, 1990838, 3981676, 4977095, 9954190, 19908380]

約数ペア:

[(1, 19908380), (2, 9954190), (4, 4977095), (5, 3981676), (10, 1990838), (20, 995419), (67, 297140), (83, 239860), (134, 148570), (166, 119930), (179, 111220), (268, 74285), (332, 59965), (335, 59428), (358, 55610), (415, 47972), (670, 29714), (716, 27805), (830, 23986), (895, 22244), (1340, 14857), (1660, 11993), (1790, 11122), (3580, 5561)]