19877520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1$

素因数の和:329

約数の個数: 160

約数和(自身を含む): 69495552

約数和(自身を除く): 49618032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 104, 115, 120, 130, 138, 156, 184, 195, 208, 230, 240, 260, 276, 277, 299, 312, 345, 368, 390, 460, 520, 552, 554, 598, 624, 690, 780, 831, 897, 920, 1040, 1104, 1108, 1196, 1380, 1385, 1495, 1560, 1662, 1794, 1840, 2216, 2392, 2760, 2770, 2990, 3120, 3324, 3588, 3601, 4155, 4432, 4485, 4784, 5520, 5540, 5980, 6371, 6648, 7176, 7202, 8310, 8970, 10803, 11080, 11960, 12742, 13296, 14352, 14404, 16620, 17940, 18005, 19113, 21606, 22160, 23920, 25484, 28808, 31855, 33240, 35880, 36010, 38226, 43212, 50968, 54015, 57616, 63710, 66480, 71760, 72020, 76452, 82823, 86424, 95565, 101936, 108030, 127420, 144040, 152904, 165646, 172848, 191130, 216060, 248469, 254840, 288080, 305808, 331292, 382260, 414115, 432120, 496938, 509680, 662584, 764520, 828230, 864240, 993876, 1242345, 1325168, 1529040, 1656460, 1987752, 2484690, 3312920, 3975504, 4969380, 6625840, 9938760, 19877520]

約数ペア:

[(1, 19877520), (2, 9938760), (3, 6625840), (4, 4969380), (5, 3975504), (6, 3312920), (8, 2484690), (10, 1987752), (12, 1656460), (13, 1529040), (15, 1325168), (16, 1242345), (20, 993876), (23, 864240), (24, 828230), (26, 764520), (30, 662584), (39, 509680), (40, 496938), (46, 432120), (48, 414115), (52, 382260), (60, 331292), (65, 305808), (69, 288080), (78, 254840), (80, 248469), (92, 216060), (104, 191130), (115, 172848), (120, 165646), (130, 152904), (138, 144040), (156, 127420), (184, 108030), (195, 101936), (208, 95565), (230, 86424), (240, 82823), (260, 76452), (276, 72020), (277, 71760), (299, 66480), (312, 63710), (345, 57616), (368, 54015), (390, 50968), (460, 43212), (520, 38226), (552, 36010), (554, 35880), (598, 33240), (624, 31855), (690, 28808), (780, 25484), (831, 23920), (897, 22160), (920, 21606), (1040, 19113), (1104, 18005), (1108, 17940), (1196, 16620), (1380, 14404), (1385, 14352), (1495, 13296), (1560, 12742), (1662, 11960), (1794, 11080), (1840, 10803), (2216, 8970), (2392, 8310), (2760, 7202), (2770, 7176), (2990, 6648), (3120, 6371), (3324, 5980), (3588, 5540), (3601, 5520), (4155, 4784), (4432, 4485)]