78078280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:431

約数の個数: 128

約数和(自身を含む): 217728000

約数和(自身を除く): 139649720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 47, 56, 68, 70, 85, 94, 119, 136, 140, 170, 188, 235, 238, 280, 329, 340, 349, 376, 470, 476, 595, 658, 680, 698, 799, 940, 952, 1190, 1316, 1396, 1598, 1645, 1745, 1880, 2380, 2443, 2632, 2792, 3196, 3290, 3490, 3995, 4760, 4886, 5593, 5933, 6392, 6580, 6980, 7990, 9772, 11186, 11866, 12215, 13160, 13960, 15980, 16403, 19544, 22372, 23732, 24430, 27965, 29665, 31960, 32806, 41531, 44744, 47464, 48860, 55930, 59330, 65612, 82015, 83062, 97720, 111860, 114821, 118660, 131224, 164030, 166124, 207655, 223720, 229642, 237320, 278851, 328060, 332248, 415310, 459284, 557702, 574105, 656120, 830620, 918568, 1115404, 1148210, 1394255, 1661240, 1951957, 2230808, 2296420, 2788510, 3903914, 4592840, 5577020, 7807828, 9759785, 11154040, 15615656, 19519570, 39039140, 78078280]

約数ペア:

[(1, 78078280), (2, 39039140), (4, 19519570), (5, 15615656), (7, 11154040), (8, 9759785), (10, 7807828), (14, 5577020), (17, 4592840), (20, 3903914), (28, 2788510), (34, 2296420), (35, 2230808), (40, 1951957), (47, 1661240), (56, 1394255), (68, 1148210), (70, 1115404), (85, 918568), (94, 830620), (119, 656120), (136, 574105), (140, 557702), (170, 459284), (188, 415310), (235, 332248), (238, 328060), (280, 278851), (329, 237320), (340, 229642), (349, 223720), (376, 207655), (470, 166124), (476, 164030), (595, 131224), (658, 118660), (680, 114821), (698, 111860), (799, 97720), (940, 83062), (952, 82015), (1190, 65612), (1316, 59330), (1396, 55930), (1598, 48860), (1645, 47464), (1745, 44744), (1880, 41531), (2380, 32806), (2443, 31960), (2632, 29665), (2792, 27965), (3196, 24430), (3290, 23732), (3490, 22372), (3995, 19544), (4760, 16403), (4886, 15980), (5593, 13960), (5933, 13160), (6392, 12215), (6580, 11866), (6980, 11186), (7990, 9772)]