18902780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 46569600

約数和(自身を除く): 27666820

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 29, 46, 52, 58, 65, 92, 109, 115, 116, 130, 145, 218, 230, 260, 290, 299, 377, 436, 460, 545, 580, 598, 667, 754, 1090, 1196, 1334, 1417, 1495, 1508, 1885, 2180, 2507, 2668, 2834, 2990, 3161, 3335, 3770, 5014, 5668, 5980, 6322, 6670, 7085, 7540, 8671, 10028, 12535, 12644, 13340, 14170, 15805, 17342, 25070, 28340, 31610, 32591, 34684, 41093, 43355, 50140, 63220, 65182, 72703, 82186, 86710, 130364, 145406, 162955, 164372, 173420, 205465, 290812, 325910, 363515, 410930, 651820, 727030, 821860, 945139, 1454060, 1890278, 3780556, 4725695, 9451390, 18902780]

約数ペア:

[(1, 18902780), (2, 9451390), (4, 4725695), (5, 3780556), (10, 1890278), (13, 1454060), (20, 945139), (23, 821860), (26, 727030), (29, 651820), (46, 410930), (52, 363515), (58, 325910), (65, 290812), (92, 205465), (109, 173420), (115, 164372), (116, 162955), (130, 145406), (145, 130364), (218, 86710), (230, 82186), (260, 72703), (290, 65182), (299, 63220), (377, 50140), (436, 43355), (460, 41093), (545, 34684), (580, 32591), (598, 31610), (667, 28340), (754, 25070), (1090, 17342), (1196, 15805), (1334, 14170), (1417, 13340), (1495, 12644), (1508, 12535), (1885, 10028), (2180, 8671), (2507, 7540), (2668, 7085), (2834, 6670), (2990, 6322), (3161, 5980), (3335, 5668), (3770, 5014)]