316793840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{18947}}^1$

素因数の和:18990

約数の個数: 80

約数和(自身を含む): 845838720

約数和(自身を除く): 529044880

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, 1520, 1672, 2090, 3344, 4180, 8360, 16720, 18947, 37894, 75788, 94735, 151576, 189470, 208417, 303152, 359993, 378940, 416834, 719986, 757880, 833668, 1042085, 1439972, 1515760, 1667336, 1799965, 2084170, 2879944, 3334672, 3599930, 3959923, 4168340, 5759888, 7199860, 7919846, 8336680, 14399720, 15839692, 16673360, 19799615, 28799440, 31679384, 39599230, 63358768, 79198460, 158396920, 316793840]

約数ペア:

[(1, 316793840), (2, 158396920), (4, 79198460), (5, 63358768), (8, 39599230), (10, 31679384), (11, 28799440), (16, 19799615), (19, 16673360), (20, 15839692), (22, 14399720), (38, 8336680), (40, 7919846), (44, 7199860), (55, 5759888), (76, 4168340), (80, 3959923), (88, 3599930), (95, 3334672), (110, 2879944), (152, 2084170), (176, 1799965), (190, 1667336), (209, 1515760), (220, 1439972), (304, 1042085), (380, 833668), (418, 757880), (440, 719986), (760, 416834), (836, 378940), (880, 359993), (1045, 303152), (1520, 208417), (1672, 189470), (2090, 151576), (3344, 94735), (4180, 75788), (8360, 37894), (16720, 18947)]