18241520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1091}}^1$

素因数の和:1134

約数の個数: 80

約数和(自身を含む): 48746880

約数和(自身を除く): 30505360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1091, 1520, 1672, 2090, 2182, 3344, 4180, 4364, 5455, 8360, 8728, 10910, 12001, 16720, 17456, 20729, 21820, 24002, 41458, 43640, 48004, 60005, 82916, 87280, 96008, 103645, 120010, 165832, 192016, 207290, 228019, 240020, 331664, 414580, 456038, 480040, 829160, 912076, 960080, 1140095, 1658320, 1824152, 2280190, 3648304, 4560380, 9120760, 18241520]

約数ペア:

[(1, 18241520), (2, 9120760), (4, 4560380), (5, 3648304), (8, 2280190), (10, 1824152), (11, 1658320), (16, 1140095), (19, 960080), (20, 912076), (22, 829160), (38, 480040), (40, 456038), (44, 414580), (55, 331664), (76, 240020), (80, 228019), (88, 207290), (95, 192016), (110, 165832), (152, 120010), (176, 103645), (190, 96008), (209, 87280), (220, 82916), (304, 60005), (380, 48004), (418, 43640), (440, 41458), (760, 24002), (836, 21820), (880, 20729), (1045, 17456), (1091, 16720), (1520, 12001), (1672, 10910), (2090, 8728), (2182, 8360), (3344, 5455), (4180, 4364)]