19009240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 44724960

約数和(自身を除く): 25715720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 67, 82, 134, 164, 173, 205, 268, 328, 335, 346, 410, 536, 670, 692, 820, 865, 1340, 1384, 1640, 1730, 2680, 2747, 3460, 5494, 6920, 7093, 10988, 11591, 13735, 14186, 21976, 23182, 27470, 28372, 35465, 46364, 54940, 56744, 57955, 70930, 92728, 109880, 115910, 141860, 231820, 283720, 463640, 475231, 950462, 1900924, 2376155, 3801848, 4752310, 9504620, 19009240]

約数ペア:

[(1, 19009240), (2, 9504620), (4, 4752310), (5, 3801848), (8, 2376155), (10, 1900924), (20, 950462), (40, 475231), (41, 463640), (67, 283720), (82, 231820), (134, 141860), (164, 115910), (173, 109880), (205, 92728), (268, 70930), (328, 57955), (335, 56744), (346, 54940), (410, 46364), (536, 35465), (670, 28372), (692, 27470), (820, 23182), (865, 21976), (1340, 14186), (1384, 13735), (1640, 11591), (1730, 10988), (2680, 7093), (2747, 6920), (3460, 5494)]