28158440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 66908160

約数和(自身を除く): 38749720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 127, 184, 230, 241, 254, 460, 482, 508, 635, 920, 964, 1016, 1205, 1270, 1928, 2410, 2540, 2921, 4820, 5080, 5543, 5842, 9640, 11086, 11684, 14605, 22172, 23368, 27715, 29210, 30607, 44344, 55430, 58420, 61214, 110860, 116840, 122428, 153035, 221720, 244856, 306070, 612140, 703961, 1224280, 1407922, 2815844, 3519805, 5631688, 7039610, 14079220, 28158440]

約数ペア:

[(1, 28158440), (2, 14079220), (4, 7039610), (5, 5631688), (8, 3519805), (10, 2815844), (20, 1407922), (23, 1224280), (40, 703961), (46, 612140), (92, 306070), (115, 244856), (127, 221720), (184, 153035), (230, 122428), (241, 116840), (254, 110860), (460, 61214), (482, 58420), (508, 55430), (635, 44344), (920, 30607), (964, 29210), (1016, 27715), (1205, 23368), (1270, 22172), (1928, 14605), (2410, 11684), (2540, 11086), (2921, 9640), (4820, 5842), (5080, 5543)]