18858032

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:174

約数の個数: 80

約数和(自身を含む): 42184800

約数和(自身を除く): 23326768

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 41, 68, 76, 82, 89, 136, 152, 164, 178, 272, 304, 323, 328, 356, 646, 656, 697, 712, 779, 1292, 1394, 1424, 1513, 1558, 1691, 2584, 2788, 3026, 3116, 3382, 3649, 5168, 5576, 6052, 6232, 6764, 7298, 11152, 12104, 12464, 13243, 13528, 14596, 24208, 26486, 27056, 28747, 29192, 52972, 57494, 58384, 62033, 69331, 105944, 114988, 124066, 138662, 211888, 229976, 248132, 277324, 459952, 496264, 554648, 992528, 1109296, 1178627, 2357254, 4714508, 9429016, 18858032]

約数ペア:

[(1, 18858032), (2, 9429016), (4, 4714508), (8, 2357254), (16, 1178627), (17, 1109296), (19, 992528), (34, 554648), (38, 496264), (41, 459952), (68, 277324), (76, 248132), (82, 229976), (89, 211888), (136, 138662), (152, 124066), (164, 114988), (178, 105944), (272, 69331), (304, 62033), (323, 58384), (328, 57494), (356, 52972), (646, 29192), (656, 28747), (697, 27056), (712, 26486), (779, 24208), (1292, 14596), (1394, 13528), (1424, 13243), (1513, 12464), (1558, 12104), (1691, 11152), (2584, 7298), (2788, 6764), (3026, 6232), (3116, 6052), (3382, 5576), (3649, 5168)]